James Kochalka Books

Squirrelly Gray

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When Squirrelly Gray loses his two front teeth, the Tooth Fairy's visit is just the beginning of a night of surprises for the squirrel in his gray, colorless world.

Squirrelly Gray Picture Book

By James Kochalka

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Kissers

By James Kochalka

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Paradise Sucks

By James Kochalka

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Banana Fox and the Secret Sour Society

By James Kochalka

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The Glorkian Warrior and the mustache of destiny

By James Kochalka

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The eponymous hapless space adventurer is joined by three horribly annoying little kids. Everything is terrible, and nothing is okay.

Johnny Boo: The Best Little Ghost In The World (Johnny Boo Book 1)

By James Kochalka

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Johnny Boo is the best little ghost in the whole world, because he's got Boo Power. This means that he can go "BOO" really loudly. His pet ghost, Squiggle, has Squiggle Power, which means that he c...

Johnny Boo: Twinkle Power (Johnny Boo Book 2)

By James Kochalka

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Johnny Boo has "boo" power and his pet ghost Squiggle has "squiggle" power. But which is better? And might there be a power that is greater than them both? Wiggle power? Giggle power? Squiggle goes...

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.