Balakrishnan, Chris, editor. Wasowski, Matt, editor. Orr, Kristen, illustrator.

Towler, Paige, author. Smith, Andy, 1973- illustrator. Encyclopaedia Britannica, Inc.

Burgan, Michael, author. Lynch, Josh, illustrator. National Geographic Kids (Firm), publisher.

Flynn, Sarah Wassner, author. Lobel, Phillip S., writer of foreword.

Bright, Michael, author. Hawkes, Chris, 1972- author. Mitchell, Abigail, author. O'Brien, Cynthia (Cynthia J.), author. Sommerville, Donald, 1957- author.