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Nancy Castaldo

JR MORTIMER is a frequent writer for National Geographic Kids magazine. 

NANCY CASTALDO is a contributing writer for National Geographic kids books. 

MATT BELLACE, Ph.D., has been a youth motivational speaker and stand-up comedian since 1995. Dr. Bellace has a Ph.D. in clinical psychology (subspeciality in neuropsychology), is a member of the National Speakers Association and the author of the book, A Better High. His "How to Get High Naturally" program encourages over a hundred thousand students a year to make healthy choices. Matt was a recurring comedian on truTV's "World's Dumbest." His stand up can be heard - and requested - on Sirius XM's Comedy Channels.
DK Life Stories: Ada Lovelace

Books

DK Life Stories: Ada Lovelace

Get Inspired! Books for After-School Clubs & Activities

Coordinating after-school clubs and activities in your school community? Explore our collection of books that will help students discover their passion for new (and screen-free!) hobbies. Focusing on topics such as art, board games, crafting, cooking, nature, sports, and more—these books are bound to spark imagination and movement. Browse the middle school and high school

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