The authors would like to thank the following people for pouring their guts into this book:
Editor: Amy Cloud
Illustrator: Jack Teagle
Chief Executive Tinkerer: Meredith Halpern-Ranzer
Research and Fact-Checking: Jessica Boddy
Research: Madeline Bender and Anna Zagorski
Designers: Mary Claire Cruz and Abby Dening
Production Editors: Helen Seachrist and Erika West
Lead Production Coordinator: Melissa Cicchitelli
Copyeditor: Megan Gendell
Proofreader: Susan Bishansky
Indexer: Elizabeth Parson
A big heartfelt thanks to the folks at Houghton Mifflin Harcourt, especially Cat Onder, Emilia Rhodes, Matt Schweitzer, Lisa DiSarro, John Sellers, Tara Shanahan, Colleen Murphy, and Ed Spade.
Special thanks to our literary agent, Steven Malk.
Guy thanks his family—Hannah, Henry, and Bram.
Mindy thanks her family—Ryan, Rhett, and Birdie.