Related to: 'Black Sheep: The Hidden Benefits of Being Bad'

Alex Loyd

Dr Alexander Loyd, PhD, ND, is the international bestselling author of The Love Code (hardcover title Beyond Willpower, Harmony, 2015) and The Healing Code (Grand Central Life & Style, 2011). He has been featured live on NBC, ABC, CBS, Fox, and PBS news programs as an expert in healing the source issues underlying illness and disease. Dr Alex lectures all over the world in person and on radio, Internet, and television, with approximately 150 speaking engagements a year. With little money and no advertising, he built the largest practice of its kind in the world, with hundreds of thousands of clients in 50 states and 167 countries (and counting). He lives in Leipers Fork, Tennessee, with his wife Hope and sons Harry and George.

Angela Saini

Born in the UK in 1980, Angela Saini is a science journalist and reports for the BBC, New Scientist, Wired and the Economist. She was named European Young Science Writer of the Year in 2009, and in 2008 won a European television news award.

David Mitchell

David Mitchell is the author of the novels Ghostwritten, number9dream, Cloud Atlas, Black Swan Green, The Thousand Autumns of Jacob de Zoet, The Bone Clocks and Slade House. He has won the John Llewellyn Rhys, Geoffrey Faber Memorial and South Bank Show Literature Prizes, and been shortlisted twice for the Booker Prize. In 2003, David Mitchell was selected as one of Granta's Best of Young British Novelists.

Donald Sull

Donald Sull is a global expert on strategy and execution in turbulent markets. He is a Senior Lecturer at MIT and was formerly Professor of Strategy and Entrepreneurship at the London Business School. He has published three award-winning books and ten best-selling Harvard Business Review articles. The Economist identified his theory of active inertia as an idea that shaped business management over the past century and Fortune listed him among the ten new management gurus. If you would like to find out more from Don about simplifying your business strategy have a look here: https://hbr.org/2012/08/simplify-your-strategy/

Dr Daniel Freeman

Professor Daniel Freeman is one of the UK's leading clinical psychologists. He is a Professor of Clinical Psychology and Medical Research Council (MRC) Senior Clinical Fellow at the University of Oxford. He was awarded the 2008 May Davidson prize by the British Psychological Society which marks 'an outstanding contribution to the development of clinical psychology. A key figure in the latest developments in cognitive behaviour therapy, he teaches clinicians around the world.

Dr Mike Shooter

Dr Mike Shooter CBE is a former President of the Royal College of Psychiatrists and was the first child psychiatrist to hold that post. He is now an honorary fellow of six Royal Colleges and has spoken from public and professional platforms, written and advised governments in many parts of the world. An ex-journalist, Mike is a passionate believer in the power of stories and the need to share them - those of his patients and his own. He still lives in the Welsh Valleys, amidst a large family, many animals, and the community with whom he worked for more than 40 years.

Ellen Langer

Ellen J. Langer was the first woman to be tenured in psychology at Harvard where she is still Professor of Psychology, and a member of the Division on Ageing of the Faculty of Medicine. Dr. Langer's other books include Mindfulness, The Power of Mindful Learning and On Becoming an Artist. She lives in Cambridge, M.A.

Emily Mackie

Emily Mackie was born in Winchester in 1983 and grew up in Scotland. After graduating with an MA in Creative Writing from Bath Spa University in 2007, her first novel, And This is True, was published in 2010 and was shortlisted for the Dylan Thomas Prize as well as the Saltire Scottish First Book of the Year Award. Her second novel, In Search of Solace, was published by Sceptre in 2014.

Gary John Bishop

Born and raised in Glasgow, Gary John Bishop moved to the US in 1997. This opened up his pathway to the world of personal development, specifically to ontology and phenomenology in which he was rigorously trained for a number of years before becoming a senior programme director with one of the world's leading personal development companies. His lifelong commitment to shifting people's ability to exert real change in their lives drives him each and every day. He has a no-frills approach that has brought him an ever increasing following, drawn to the simplicity and real-world use of his work. He lives in Florida with his wife and three sons.

Gary Klein

Gary Klein, PhD, is a research psychologist famous for his part in founding the field of naturalistic decision making, and is Senior Scientist at MacroCognition LLC. He was one of the leaders of a team that redesigned the White House Situation Room. Gary is the author of several books, including The Power of Intuition and Streetlights and Shadows.

Geoff Colvin

Geoff Colvin is Fortune's senior editor-at-large and is also the author of Talent is Overrated and The Upside of the Downturn. He has served as moderator of the Fortune Global Forum, where he has interviewed Bill Gates, Jack Welch, Herb Kelleher, Peter Drucker and other business legends. Colvin graduated Harvard cum-laude with a B.A. in Economics, and received his MBA from New York University's Stern School.

Gretchen Rubin

Gretchen Rubin is one of the most influential writers on the linked subjects of habits, happiness, and human nature. She's the author of many books, including the New York Times bestsellers, Better Than Before and The Happiness Project. A member of Oprah's SuperSoul 100, Rubin has an enormous following, in print and online; her books have sold more than 2 million copies worldwide, in more than 35 languages; and on her popular daily blog, gretchenrubin.com, she reports on her adventures in pursuit of habits and happiness. She also has an award-winning podcast, Happier with Gretchen Rubin. She lives in New York City with her husband and two daughters.gretchenrubin.com twitter | facebook | instagram

Griff Rhys Jones

Griff Rhys Jones was born in Cardiff in 1953. He is a comedian, actor and writer whose television credits include Not the Nine O'Clock News, Smith and Jones, Restoration, Mountain and Rivers. He is the author of To the Baltic With Bob, Mountain and the bestselling memoir Semi-Detached.

Harry Thompson

Harry Thompson invented many TV comedy hits such as Have I Got News For You and Da Ali G Show. He was the author of several acclaimed bestsellers, including PETER COOK: A BIOGRAPHY and PENGUINS STOPPED PLAY, as well as a historical novel, THIS THING OF DARKNESS which was shortlisted for the Booker Prize. He worked as a producer at Talkback TV and in his spare time he ran the infamous cricket team, the Captain Scott XI. Harry Thompson died in 2005.

Ian Ayres

Ian Ayres is a professor at Yale both in the Law School and in the School of Management, as well as a lawyer and author. He is a regular commentator on National Public Radio in America and a columnist for Forbes magazine. A contributor to the New York Times and editor of the Journal of Law, Economics and Organization, he has written several books.

Jason Freeman

Jason Freeman is a writer and editor in the areas of popular psychology and self help.

John Naish

John Naish writes on lifestyle issues for The Times and has been practising what he preaches in ENOUGH for years. He lives in Brighton with his wife but no mobile phone.

Jon Butterworth

Jon Butterworth is a leading physicist on the Large Hadron Collider, and Head of Physics and Astronomy at UCL. He writes the popular Life & Physics blog for the Guardian and has written articles for a range of publications including the Guardian and New Scientist. Jon often discusses physics in public, including talks at the Royal Institution and the Wellcome Trust and appearances on BBC Radio 4's Today Programme, The Infinite Money Cage, BBC Newsnight, Horizon, Channel 4 News and Al Jazeera. He was awarded the Chadwick Medal of the Institute of Physics in 2013 for his pioneering work in high energy particle physics, especially in the understanding of hadronic jets. His book Smashing Physics was shortlisted for the 2015 Royal Society Winton Prize.

Justin Pollard

Justin Pollard read Archaeology and Anthropology at Cambridge. He is a historical writer and consultant in film and TV. His credits include Elizabeth and Atonement and the BBC TV drama The Tudors, as well as more than twenty-five documentary series such as Channel 4's Time Team. He is a writer and researcher for QI, and the author of seven books including THE INTERESTING BITS, CHARGE!, SECRET BRITAIN and BOFFINOLOGY.

Kathleen Eisenhardt

Kathleen M. Eisenhardt is Professor of Strategy and Organization at Stanford University. She received a B.S. in mechanical engineering from Brown University, holds an M.S. in computer science and received a Ph.D. from Stanford's Graduate School of Business. She also has several honorary degrees including from London Business School. She is the co-author (with Shona L. Brown) of Competing on the Edge: Strategy as Structured Chaos.