Travis Jonker Books

Blue Floats Away

By Travis Jonker, Grant Snider

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The very last castle

By Travis Jonker

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A curious little girl watches the man who guards the last castle in town. Every time she passes by him, she tries to catch his eye. While the other townspeople fear what may be locked up inside the...

Just One Flake

By Travis Jonker

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Just One Flake

By Travis Jonker

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Very Last Castle

By Travis Jonker, Mark Pett

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Blue Floats Away

By Travis Jonker

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Just One Flake

By Travis Jonker

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The Ship in the Window

By Travis Jonker

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Caldecott Medalist Matthew Cordell and librarian Travis Jonker have crafted a timeless tale of a little mouse and a big adventure.Mabel the mouse wants nothing more than to be a fearless sea captai...

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.