Every company is in the health care business, no matter its industry. So says John Quelch, a professor at both the Harvard Business School and the Harvard T.H. Chan School of Public Health, where Quelch has devoted an entire class to the intersection of business and health care called “Consumers, Corporations and Public Health.” The course uses cases on a wide range of subjects, from HealthCare.gov to Royal Caribbean Cruises, to medical marijuana, to dig into issues of corporate strategy, employee safety, and how to solve health problems through research and innovation.

Twitter’s Founder, Jack Dorsey, talks about the history of Twitter, the founding of Square, and how he made the transition from programmer to CEO.

HBS alumnus Sir Ronald Cohen, founder of Apax Partners and known as the father of venture capital in Great Britain, sits down with CMO Brian Kenny on The Business to talk about the importance of social impact investing, a new way to link financial incentives directly to social improvements that could change the world and revolutionize the philanthropic and not-for-profit sectors.

Year-Up, a business taking low-income 18 to 24 year olds from poverty to a professional career, seems more relevant than ever with business professionals pushing to fill the middle skills gap. Listen to last year’s interview with 2014 Harvard Business School Alumni Achievement Award Winner Gerald Chertavian about how Year-Up is teaching young adults middle skills for success in Fortune 500 companies.

What books would guests on The Business give as holiday gifts? Listen for what Mitch Weiss, Dan Koh, Nancy Koehn, Max Bazerman, Frank Cespedes, and host Brian Kenny would recommend for the bookworm in your life.

On the 100th Anniversary of explorer Ernest Shakleton’s colossal failure to traverse Antarctica, professor and historian Nancy Koehn explains how Shackleton’s extraordinary crisis leadership ensured the survival of his crew. Listen for story of the Endurance expedition and lessons from the HBS case study.

HBS Alumni Dan Koh (MBA 2011) and Senior Lecturer Mitch Weiss (MBA 2004) both served as Chief of Staff to the Mayors of Boston. Under the guidance of former Mayor Tom Menino and Mayor Marty Walsh, they learned to lead in the public sector for the greater good, but their path to get there wasn’t always a smooth one.

Professor Frank Cespedes sits down to talk to Brian Kenny about his new book “Aligning Strategy and Sales: The Choices, Systems, and Behaviors that Drive Effective Selling” and why sales and strategy are so important to business.

If you want to know what “collective genius” can look like, watch a Pixar film. Pixar Animation Studios produce the first computer generated (cg) feature film, “Toy Story,” nearly twenty years ago. More blockbusters followed, including “Finding Nemo,” and “Monsters, Inc.” Pixar has thrived because it has never stopped innovating. Our guest on this edition of “The Business” is Harvard Business School Professor Linda Hill, one of the authors of the new book “Collective Genius: The Art and Practice of Leading Innovation.” She says every one of these cg films has been an innovative tour de force, yet no solitary genius, no flash of inspiration, produced those movies.” Instead, she writes, they were the product of hundreds of people, years of work, and hundreds of millions of dollars.

Carnegie Corporation co-Chief Investment Officers Kim Lew (MBA 1992) and Meredith Jenkins (MBA 1999) talk about investment with a mission, what it’s like to share a leadership role, and offer advice for women in the HBS class of 2014.

Adrian Wooldridge, management editor and Schumpeter columnist at The Economist magazine, on his new book, The Fourth Revolution: the Global Race to Reinvent the State, written with John Micklethwait. They argue that global financial problems and technological innovation are forcing states to change the way they operate.