Cleo Valentine is a systems designer, neuroarchitectural researcher and doctoral candidate at the University of Cambridge, Department of Architecture. She is also an associate at Cambridge Architectural Research Ltd. where she provides consultancy services on public health and architecture.

Niall McLaughlin is a Stirling Prize winning Irish architect based in London and Professor of Architectural Practice at the Bartlett School of Architecture.

Mark Foster Gage is an American architect, writer, and theorist based in New York City where he runs his practice, Mark Foster Gage Architects. He is an associate professor at the Yale School of Architecture where his academic focus is on aesthetic philosophy.

Adam Nathaniel Furman is a British artist & designer of Argentine & Japanese heritage based in London. Trained in architecture, Adam's atelier works in spatial design and art of all scales from video and prints to large public artworks, architecturally integrated ornament, as well as products, furniture, interiors, publishing and academia.

Dr Nikos Salingaros is a mathematician and polymath known for his work on urban theory, architectural theory, complexity theory, biophilic design, and design philosophy.

Dusty Gedge is a Green Infrastructure Professional, Speaker, Photographer and Nature Conservationist, as well as President of the European Federation of Green Roof Associations (EFB) and founder of Livingroofs.org. This conversation is all about green roofs, green walls and green infrastructure.

Dr Timothy Brittain-Catlin is Course Leader for the MSt Architecture Apprenticeship at the University of Cambridge. He has also just published a new book, 'The Edwardians and their Houses', the first radical appraisal of the subject for 40 years.

Towards a Holistic Architecture: What is a holistic architecture and how might we best investigate how to achieve it?

'The New Sympathy: An Exploration of How Emerging Theories in Scientific, Mathematical and Psychological Understanding of the Natural World are Affecting the State of Ornament in Architecture'.

Dr Eleanor Ratcliffe is a Lecturer in Environmental Psychology at the University of Surrey, specialising in restorative environments, place attachment, soundscapes, connectedness to nature, aesthetics, consumer behaviour, user experience and designing for wellbeing.

Dame Laura Lee is CEO of Maggie's, a charity providing drop-in support centres for cancer patients, each designed by a different architect.