by Meghan Ryan Asbury and Lysa TerKeurst (Foreword)
by Donna Ashworth
by Kelly C. Miller
by Eva Wong
by Mark "Mace" Macy and Travis Macy
by Courtney Ellis
by Heather Turgeon, , MFT and Heather Turgeon, , MFT
by Anthony Davenport and Matthew Rudy
by AA Services
by Allen Klein
by Uri Gneezy
by Holly Parker, , PhD
by Victoria Price
by Tim Harford
by Dan Buettner
by Henry Emmons
by Jenn Granneman
by Bruce Feiler
by Andrew Packer
by Joel Fotinos
by Anne Perry
by Bob Nease, , PhD
by Eboni K. Williams
by Nora Gedgaudas
by Anthony T. de Benedet, , MD
by Kacie Berghoef and Melanie Bell
by Barry Yourgrau
by Marcus Aurelius
by Peter C. Brown
by Donna Barba Higuera
by Dr. John Day and Matthew LaPlante
by Elizabeth Svoboda
by Jennifer McCartney
by Diana Patton
by Kailyn Lowry
by Kate White
by Tristan Gooley
by Gabriel Wyner
by Gerad Kite
by Dr. Walter C. Willett, , MD, , PhD and Patrick J. Skerrett
by Halley Bondy
by Doris E. Cohen, , PhD
by Josh Linkner
by Amy Tangerine
by Julie Foudy
by Due Quach
by Charreah K. Jackson
by Partha Nandi, , MD
by Tracy Abell
by Christy Mihaly
by Angie Smibert
by Jill Sherman
by Lisa J. Amstutz
by Megan Blakemore
by Patti Richards
by Julia VanTine, , RD
by Anthony Jacks
by Frances Kay
by Nigel Cumberland
by Shayne Traviss
by Karen Casey, Ph.D.
by Craig Jarrow
by Bertrand Russell
by Debra Landwehr Engle
by Sarah Kucera and Dr. Suhas Kshirsagar
by Jeffrey Pfeffer
by Stephen Fulder
by Neil T. Anderson
by Tyler Knott Gregson
by Elise Marie Collins
by Alan D. Wolfelt, PhD
by Gary Small, MD and Gigi Vorgan
by Jeffrey Katz
by Madeleine Black
by Jack Modzelewski
by Bárbara Palacios
by Brodie Ramin, M.D.
by Roger Walsh, M.D., Ph.D.
by Kim Jones
by Heather Christle
by Bob Carlson
by Jean François Ménard
by Arianna Davis
by David Bulitt and Julie Bulitt
by Sophie Saint Thomas
by Dr. Chloe Carmichael
by John Hudson
by Rebekah Younger
by Jesse Sands
by Jonah Paquette
by Jessica Cording
by Dalia Kinsey
by Caroline Garnet McGraw
by Emily Chang
by Simon Chapple
by Nina Restieri
by Diane Boden
by Zena Everett