James Nestor
Yuval Noah Harari
Robin Wall Kimmerer
Brian Cox & Jeff Forshaw
John Norman
Neil deGrasse Tyson
Richard V. Reeves
Richard C. Schwartz Ph.D. & Alanis Morissette - foreword, introduction
Eric Berger
Caroline Criado-Perez
Robert M. Sapolsky
Carl Sagan
Rebecca Skloot
Patricia McConnell
Anil Seth
Thomas E. Woods, Jr.
Carl Sagan
Dr. Becky Smethurst
Yuval Noah Harari
Neil Shubin
Jenny Odell
Donella Meadows
Robert F. Kennedy Jr. & Brian Hooker
Neil Postman
Ijeoma Oluo
Thomas Sowell
Ros Atkins
Sean Carroll
Lyn Alden
Dan Flores
Sy Montgomery
Joseph M. Marshall III
David Deutsch
Andrew Hutz, Travis A. Everett & Mike Meyers
Mary Roach
Karl Deisseroth
Dion Rosser
Yuval Noah Harari
Zoë Schlanger
Christopher M. Palmer, MD
Derral Eves
Nathan DeWall
David Baker
Leslie Kean & John Podesta
Stephanie Higgs, Nicole Kosanke, PhD, Jeffrey Foote, PhD & Carrie Wilkens, PhD
Louann Brizendine, M.D.
Steve Brusatte
Carl von Clausewitz
Ayana Elizabeth Johnson
Carlo Rovelli, Simon Carnell & Erica Segre
Joshua Foer
Craig Foster
Gene Kranz
Jerome Groopman, M.D.
Daniel E. Lieberman
Roger Penrose
Richard Dawkins
Steven E. Koonin
Paul Levy
Brian Greene
Christiana Figueres & Tom Rivett-Carnac
Philipp Dettmer
Jennifer L. Gaudiani, MD, CEDS, FAED
Michelle Nijhuis
Nimesh Patel
Florence Williams
David Seidl & Mike Chapple
Stephen Hawking
Richard Wolfson & The Great Courses
Geoffrey West
Carl Sagan
Michael Guillen, PhD
Layla F. Saad
Elizabeth Rush
Nicholas A. Christakis
Vicki Dincher
Janna Levin
Emily Monosson
Neil Morton
Rachel Carson
BBC Radio
Richard Dawkins
Vitalik Buterin
Sherry Turkle
Carol Kaesuk Yoon
Nathan Belofsky
D. T. Max
Antonio C. Bianco
Thomas R Verny
Joe I. Garri
Scientia Media Group & Leo Xavier Davidson
George Musser
Cheryl K. Smith
New Scientist
Anne Kuo
Melanie Mitchell
Armand Marie Leroi
Shreyas Subramanian
Vincent M. Figueredo
Peter Daou