Megan McDonald Books

Judy Moody Gets Famous!

By Megan McDonald Illustrated By Peter H. Reynolds

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Good moods, bad moods, can't-stand-Jessica-Finch moods. Judy Moody is back with her many hilarious moods.Fans of Judy Moody already know that Judy has a mood for every occasion—and this time...

Judy Moody Judy Moody Goes To College

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Judy Moody Goes to College

By Megan McDonald Illustrated By Peter H. Reynolds

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It's her funniest adventure yet! A few sessions with a college-age math tutor turn Judy into a jargon-spouting polygon princess. Crucial! Judy Moody is in a mood. Not a good mood. And definitely NO...

Judy Moody Predicts the Future

By Megan McDonald

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After Judy obtains a mood ring, she tries to convince herself and her third-grade classmates that she can predict the future.

Judy Moody Predicts The Future

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Judy Moody Saves the World

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Judy Moody Saves the World!

By Megan McDonald Illustrated By Peter H. Reynolds

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Judy Moody did not set out to save the world. She set out to win a contest.It all started with the Crazy-Strip contest — and the dream that she, Judy Moody, might one day see her very own adh...

Judy Moody M.D. The Doctor Is In

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Judy Moody, M.D.

By Megan McDonald Illustrated By Peter H. Reynolds

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Judy gets a taste of her own medicine in a hilarious new episode sure to tickle your humerus (aka funny bone) and put you in a very Judy Moody mood!She took her own temperature. With the fancy ther...

Judy Moody Around the World in 8 1 2 days

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.