“Science Bob” Pflugfelder is a science teacher, author, maker, and presenter that knows how to share the world of science like never before. He is a regular guest on Jimmy Kimmel Live!, Live With Kelly and Ryan, The Dr. Oz Show, and Nickelodeon’s Nicky, Ricky, Dicky and Dawn. His television appearances also include The Today Show, Hack My Life, Good Morning America, Home & Family and others.

Steve Hockensmith is both a New York Times bestselling author (for Pride and Prejudice and Zombies: Dawn of the Dreadfuls) and a Best First Novel Edgar Award nominee (for his mystery Holmes on the Range). He has two young children and lives near San Francisco.

Scott Garrett is a UK-based freelance illustrator whose clients have included Vodafone, Nestle, VW, GQ, The Guardian, Los Angeles Times, Boston Globe, Business Week, Klutz Books, Faber & Faber and Random House. He lives by the sea in Hastings, East Sussex, with his family.