Paco Underhill is an environmental psychologist, a New York Times best-selling author, and the founder of the market research and consulting company Envirosell. His book Why We Buy: The Science Of Shopping was a global bestseller, and his latest book, How We Eat,explores how the world of food and drink is changing.

Dr. Cathrine Jansson-Boyd has written and edited several books (and chapters) about consumer psychology. She has conducted research for large organisations including Cambridgeshire County Council and Unilever. Cathrine has published many articles and given numerous talks around the globe on consumer psychology-based topics. She is on the BBC expert list and frequently speaks about consumption on the BBC. She is a lecturer in consumer psychology but has previously taught other areas including environmental psychology and cognitive psychology. Cathrine has also held academically-related positions at the London Metropolitan University, Birkbeck, and London School of Economics.

Ella McKay is the co-creator of Fatso, an ethical dark chocolate brand stocked at Harvey Nichols, Liberty London, Oliver Bonas, and Anthropologie.

Isolde Walters is a freelance features journalist who writes for The Telegraph, The Times, The Daily Mail and the i newspaper, among other publications. She has worked in newsrooms in London and New York and specialises in writing about relationships, wellness, personal finance, and how we live now