JM

J.R. Mortimer

JR Mortimer is a frequent writer for National Geographic Kids. 

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.

Books by J.R. Mortimer

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Board & Picture Books

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Chapter Books

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Graphic Novels

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Middle Grade

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Spring

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Summer

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Fall

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Winter

Random House Children's Books