In this episode, Jerry meets with Patricia Seed, an American professor of history at the University of California, Irvine. Patricia has spent her career mapping the earliest voyages of European ‘discovery’ that transformed our world. Specialising in the history of cartography and navigation, she is an authority on latitude! 

Together they discuss the ‘Ulm Ptolemy’, a landmark world map in The Sunderland Collection, so called for its inclusion in ‘Cosmographia’ (1482) which was published in Ulm by Lienhart Holle and based directly on the geography of Claudius Ptolemy (2nd Century CE). 

This map was created six years before the Portuguese rounded the tip of Africa in 1488 and offers a fascinating snapshot on the eve of a global revolution. Using the map as a touchstone, Patricia and Jerry will talk about the key developments in late fifteen-century maritime navigation and the significance of voyages by Portuguese explorer Bartolomeu Dias (1450-1500). 

We also hear from Patricia about how this brought about a whole new world view and acted as the catalyst for one of the darkest periods of world history - the Transatlantic slave trade. 

Follow along with this episode at oculi-mundi.com/patricia-seed

From historians, scientists and writers, to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. 

Join us as map historian Jerry Brotton invites each guest to share a map close to their heart - and unfurl the ideas, inspirations, and personal stories behind it.

If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - what’s YOUR map?

The award-winning What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique cartography.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen, and find more information and rabbit-holes about each guest.

Image detail: ©The Sunderland Collection

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection or Whistledown Productions.

In this episode, host Jerry sits down with broadcaster, producer, writer and DJ, Zakia Sewell. Together they discuss her latest book, Finding Albion, which chronicles her journey across the British Isles to explore its seasonal myths, enduring legends, and deep-rooted rituals.

Zakia shares the map featured in the book, created with artist Alex Merry - a playful illustrative map of England, Scotland and Wales pinpointing the sites encountered on her quest to find folkloric Albion. Jerry and Zakia also take a look at an early seventeenth century work in the Ex Carta collection of literary maps: ‘Poly Olbion’ by Michael Drayton (1613), an allegorical poem about England and Wales which is accompanied by a series of whimsical copper-engraved county maps.

Tracing back to fourth-century BCE Greek geographers, 'Albion' is recorded as the earliest name for Britain. The term traditionally translates to 'white land' (derived from the Latin 'albus') which the Romans attributed to Dover's striking chalk cliffs, but as Zakia reveals, the name carries another origin story!

Follow along with this episode at oculi-mundi.com/zakia-sewell

From historians, scientists and writers, to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. 

Join us as map historian Jerry Brotton invites each guest to share a map close to their heart - and unfurl the ideas, inspirations, and personal stories behind it.

If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - what’s YOUR map?

The award-winning What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique cartography.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen, and find more information and rabbit-holes about each guest.

Image detail: Map of Albion ©Alex Merry/Zakia Sewell. Image courtesy of the Artist, and Hodder Press.

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection or Whistledown Productions. 

In the first episode of series six, Jerry speaks with Dr. Jost Schmid, the Head of Maps and Panoramas at the Zentralbibliothek Zürich (Zürich Central Library). Jost is a specialist in historical geography and this year marks his 20th year working at the Library! He has chosen a 500-year-old map that is both one of the earliest printed maps bound into a bible and the first map to be printed in Zürich, Switzerland. 

The map, which has been printed in mirror image, depicts the biblical stories of the Old Testament set in the Holy Land - a region in Western Asia covering modern-day Syria, Palestine and Israel, and parts of Jordan and Egypt. Crafted by Swiss humanist scholar, cartographer and prominent figure in the Protestant Reform Joachim Vadian (1484-1551), this remarkable map draws directly from a six-sheet original by Renaissance painter and printmaker Lucas Cranach the Elder (1473-1553). Printed by the renowned Swiss publisher Christopher Froschauer (1490-1564) for inclusion in his 1515 Bible, it stands as one of three known surviving copies! 

In their conversation, Jost and Jerry explore the convergence of real and fantastical cartography, maps of sacred spaces, and the emergence and evolution of borders in early mapmaking. They also discuss the imaginary realms depicted in legendary tales, and how maps served as useful tools on metaphysical pilgrimages or journeys.

Follow along with this episode at oculi-mundi.com/jost-schmid

From historians, scientists and writers, to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. 
Join us as map historian Jerry Brotton invites each guest to share a map close to their heart - and unfurl the ideas, inspirations, and personal stories behind it.
If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - what’s YOUR map?

The award-winning What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique cartography.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen, and find more information and rabbit-holes about each guest.

Image detail: ©Zentralbibliothek Zurich

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection or Whistledown Productions.

In this special episode, live from Hay Festival 2026, Jerry was joined by former diplomatic editor at Sky News and author Tim Marshall; award winning historian, broadcaster and author David Olusoga OBE; and BAFTA-nominated screenwriter and novelist Emma Jane Unsworth.

To explore the maps as you listen visit Oculi-Mundi.com/wym-live-hay-2026

From historians, scientists and writers to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. Join us in this award winning podcast (Gold in Education at the British Podcast Awards 2025) as Jerry Brotton invites a guest to share a map close to their heart - and unfurl the ideas, inspirations, and stories behind it.

If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - What’s your map?

What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique maps and atlases.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen.

Producer: Emma Jones (Hay Festival)
Recording: George Tarplee (Hay Festival)
Technical: Nia Thomson, Lewis Jones (Hay Festival)
Music: Eric de Broche des Combes
Animation: João "Daxter" Pinheiro Camacho

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection, Hay Festival or Whistledown Productions. 

In this episode we have a roar-some treat: our intrepid host Jerry Brotton journeys to the legendary Barbaric Archipelago with best-selling children's author and illustrator Cressida Cowell.

Cressida’s chosen map shows the landscape she created for her acclaimed children’s series, How to Train Your Dragon (2009-2015), which charts the adventures of the young Viking, Hiccup Horrendous Haddock III and his dragons Toothless and Windwalker. This map comes from her latest book How To Train Your Dragon School: Fight of the Flamestrike (June 2026).

We hear about Cressida's childhood summers spent on the wild and remote Scottish island of Little Colonsay, off the Isle of Mull. She reflects on the creative process - the joy of getting lost and the act of creation - and we hear about some of the influential literary maps that shape her creative vision… we also learn a spot of Dragonese!

To explore the map as you listen, visit: https://oculi-mundi.com/cressida-cowell

From historians, scientists and writers, to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. 

Join us as map historian Jerry Brotton invites each guest to share a map close to their heart - and unfurl the ideas, inspirations, and personal stories behind it.

If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - what’s YOUR map?

The award-winning What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique cartography.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen, and find more information and rabbit-holes about each guest.

Image detail: ©Cressida Cowell / Hachette UK

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection or Whistledown Productions. 

In this episode, Jerry meets master navigator, sailing expert and award-winning author David Barrie. Together, they discuss a British Admiralty chart of the North Atlantic Ocean that tracks David’s incredible 1973 Transatlantic voyage aboard a 35-foot yacht named Sæcwen, from Halifax in Nova Scotia east across the Ocean to Falmouth in Cornwall, UK

We learn about David’s fascination with celestial navigation and the remarkable optical instrument called a sextant that he and his crew mates used during the 24-day adventure to find their positions at sea. A sextant is an extraordinary optical instrument that identifies the angle between the horizon and a celestial body - such as the Sun, the Moon or a star - to assist in the determining of latitude and longitude at sea. 

During the episode, we also hear about David's transition from the field of experimental psychology to his exploration of animal behaviour and wayfinding, and a glimpse into the world of supernavigators.

To explore the map as you listen, visit: https://oculi-mundi.com/david-barrie

From historians, scientists and writers, to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. 

Join us as map historian Jerry Brotton invites each guest to share a map close to their heart - and unfurl the ideas, inspirations, and personal stories behind it.

If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - what’s YOUR map?

The award-winning What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique cartography.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen, and find more information and rabbit-holes about each guest.

Image courtesy of David Barrie.

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection or Whistledown Productions. 

In this episode, Jerry meets master craftsperson, globemaker and conservator Jonathan Wright. Jonathan brings with him a twelve-inch celestial globe produced by Scottish firm James Kirkwood & Sons from 1810.

For Jonathan, this globe marks a significant career milestone: it was the first one he ever restored. In his discussion with Jerry, we hear about some of the intricate conservation methods he used, the challenges he encountered - and the rather peculiar items he discovered inside the globe…

Jerry also explores Jonathan's professional journey. We hear about his personal motivations, dream commissions, and the artistic and historical influences that shape his work and practice. Above all, Jonathan reflects on the profound personal meaning for him in keeping this essential traditional craft alive.

To explore the globe as you listen, visit: https://oculi-mundi.com/jonathan-wright

From historians, scientists and writers, to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. 

Join us as map historian Jerry Brotton invites each guest to share a map close to their heart - and unfurl the ideas, inspirations, and personal stories behind it.

If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - what’s YOUR map?

The award-winning What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique cartography.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen, and find more information and rabbit-holes about each guest.

Image detail: ©Jonathan Wright

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection or Whistledown Productions. 

Jerry meets Bill Rankin, a cartographer, author and Professor of History at Yale University. In this episode of What’s Your Map? they discuss two fascinating infographic maps that feature in Bill’s latest book Radical Cartography: What Maps Tell Us About Who We Are (2025). 

Radical cartography uses the method of mapmaking as a tool to challenge and educate on social, cultural, and political affairs. Radical maps are thematic maps that aim to give agency to the people who are represented within them and better show the nuanced world we live in. 

The first map they discuss was designed by civil servant and activist Gwendolyn Warren in 1971. Titled ‘Where Commuters Run Over Black Children on the Pointes-Downtown Track’, the map documents the racial inequalities of a Detroit neighbourhood and is designed to inspire change.

The second map, titled ‘A Taxonomy of Transitions’ shows the ethnography of Chicago and was made by Bill in 2010. It was created using self-identification government census data and illustrates the relationships of the different neighbourhoods in the city. This map harnesses the power of infographics to better represent the people who live in the area and create a boundary-less community. 

To explore the maps as you listen, visit: https://oculi-mundi.com/bill-rankin

From historians, scientists and writers, to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. 

Join us as map historian Jerry Brotton invites each guest to share a map close to their heart - and unfurl the ideas, inspirations, and personal stories behind it.

If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - what’s YOUR map?

The award-winning What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique cartography.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen, and find more information and rabbit-holes about each guest.

WHAT’S YOUR MAP? LIVE is making its Hay Festival debut! Join host Jerry and guests Tim Marshall, David Olusoga OBE and Emma Jane Unsworth on Wednesday 27 May at 8.30pm on the Discovery Stage as they unfurl history, culture and adventure in a live, immersive show. Find tickets: Oculi-Mundi.com/hay-2026 

Image detail: ©Bill Rankin

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection or Whistledown Productions. 

In this episode, Jerry speaks with Dr. Rohini Rai, a sociologist of race, ethnicity, and migration, and lecturer at Brunel University in London. She is also the co-founder of the Critical Himalayan Collective, a scholarly, activist network focused on reimagining Eastern Himalayan studies through Indigenous knowledge, art, and critical dialogue.

Rohini shares a map from the Royal Geographical Society Collections showing the colonial borders imposed on her home, Sikkim. The ‘Sketch Map of Sikkim and parts of Darjeeling, Nepal, Tibet and Bhutan’ was initially produced to accompany a report of a British surveying expedition in 1884-1886 led by Colonel Tanner.

We learn about Rohini’s research on the politics of the Eastern Himalayas and Himalayan diaspora in the UK. We also hear about Rohini's personal history in the region and the inspired projects using embodied practices like dance to reclaim colonised archival materials and remap ancestral lands.

To explore the map as you listen, visit: https://oculi-mundi.com/rohini-rai

From historians, scientists and writers, to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. 

Join us as map historian Jerry Brotton invites each guest to share a map close to their heart - and unfurl the ideas, inspirations, and personal stories behind it.

If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - what’s YOUR map?

The award-winning What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique cartography.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen, and find more information and rabbit-holes about each guest.

WHAT’S YOUR MAP? LIVE is making its Hay Festival debut! Join host Jerry and guests Tim Marshall, David Olusoga OBE and Emma Jane Unsworth on Wednesday 27 May at 8.30pm on the Discovery Stage as they unfurl history, culture and adventure in a live, immersive show. Find tickets Oculi-Mundi.com/hay-2026 

Image detail: ©RGS-IBG

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection or Whistledown Productions. 

This week, Jerry meets Ross Perlin, a linguist, writer, and translator focused on exploring and supporting linguistic diversity. Ross is the co-director of the Endangered Language Alliance (ELA), a non-profit organisation dedicated to documenting Indigenous, minority, and endangered languages, and supporting a mosaic of languages in New York City - Lenapehoking and beyond.

Ross shares an incredible interactive map (www.languagemap.nyc) that illustrates the rich tapestry of languages in New York with a focus on language at risk of disappearing. We delve into the City's foundational language, Lenape, and trace the journeys of native speakers and inspiring revitalisation projects for some the 700 languages that thrive and survive in New York.

As well as learning about some of the challenges of mapping and preserving languages, the questions around AI and language legacy, we also hear about Ross’ career in linguistics. This includes his language investigations in the Eastern Himalayas and the influence of his mentor, eminent linguist Hongkai Sun.

To explore the map as you listen, visit: https://oculi-mundi.com/ross-perlin

From historians, scientists and writers, to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. 

Join us as map historian Jerry Brotton invites each guest to share a map close to their heart - and unfurl the ideas, inspirations, and personal stories behind it.

If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - what’s YOUR map?

The award-winning What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique cartography.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen, and find more information and rabbit-holes about each guest.

WHAT’S YOUR MAP? LIVE is making its Hay Festival debut! Join host Jerry and guests Tim Marshall, David Olusoga OBE and Emma Jane Unsworth on Wednesday 27 May at 8.30pm on the Discovery Stage as they unfurl history, culture and adventure in a live, immersive show. Find tickets Oculi-Mundi.com/hay-2026 

Image detail: ©Ross Perlin, Daniel Kaufman, Jason Lampel, Maya Daurio, Mark Turin, Sienna Craig, eds., Endangered Language Alliance.

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection or Whistledown Productions. 

This week, Jerry meets Dr. Richard A. Pegg, the Director and Curator of Asian Art at the MacLean Collection, Asian map aficionado, and proud owner of Blue China Map shoes! 

The MacLean Collection is an astonishing private collection of Asian art and global cartography. Based in Chicago, it is home to over 5,000 historic artefacts and more than 35,000 maps.

In this episode, Richard and Jerry discuss two majestic maps from the Qing Dynasty, known colloquially as the ‘Blue China Maps’: the ‘Complete Geographical Map of the Everlasting Qing Dynasty’ by Huang Qianren (pron. Hwang Chien-ren) (c.1820) and the ‘Complete Celestial Chart of Equatorial Fixed Stars’ by Yunyou Sanren (pron. Yün-yo (like a German ü) San-ren) (c.1822). 

Richard explains the complex world view behind these maps and what they would have meant to someone consulting them in tandem during 19th Century China. He reveals how they were made, the source of their stunning blue colouring - and how they reflect the imperial Mandate of Heaven.

To explore the map as you listen, visit: https://oculi-mundi.com/richard-pegg

From historians, scientists and writers, to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. 

Join us as map historian Jerry Brotton invites each guest to share a map close to their heart - and unfurl the ideas, inspirations, and personal stories behind it.

If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - what’s YOUR map?

The award-winning What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique cartography.

For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen, and find more information and rabbit-holes about each guest.

WHAT’S YOUR MAP? LIVE is making its Hay Festival debut! Join host Jerry and guests Tim Marshall, David Olusoga OBE and Emma Jane Unsworth on Wednesday 27 May at 8.30pm on the Discovery Stage as they unfurl history, culture and adventure in a live, immersive show. Find tickets Oculi-Mundi.com/hay-2026

Image detail: ©The Sunderland Collection

All views and opinions expressed by guests on the podcast are entirely their own and do not represent those of The Sunderland Collection or Whistledown Productions.