Kathryn Otoshi Books

What Emily Saw

By Kathryn Otoshi

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Simon and the Sock Monster

By Kathryn Otoshi

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One

By Kathryn Otoshi

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One

By Kathryn Otoshi

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Two

By Kathryn Otoshi

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Two is best friends with One. Whenever they'd get the chance, they'd dance! But then Three jumps in between them, and suddenly One only wants to play with Three. Two feels left out, but what can sh...

Beautiful hands

By Kathryn Otoshi

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This colorful concept book reveals an illustrative surprise and reading delight with every turn of the page. Little hands can do so many wonderful things: plant ideas; stretch imaginations; and rea...

Draw the Line

By Kathryn Otoshi

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Draw the line

By Kathryn Otoshi

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Wordless picture book. When two boys draw their own lines and realize they can connect their lines together magic happens! But a misstep causes their lines to get crossed.

Zero

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Draw the Line

By Kathryn Otoshi

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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.