Joanna Cotler Books

Sky Above, Earth Below

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While in the hospital recovering from an accident, Brent gets to know is funny roommate, Kirk and the caring Amy down the hall. The three's friendship grows, but tragedy is around the corner.

If I Were a Dog

By Joanna Cotler

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Heart and Humor

By Jeanne Steig, William Steig, Joanna Cotler, Jane Bayard Curley

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Sorry (Really Sorry)

By Harry Bliss, Joanna Cotler

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A sweet and thoughtful picture book about how one act of kindness can change the world, written by publishing legend Joanna Cotler and illustrated by New York Times bestseller Harry Bliss—now...

Sorry Really Sorry

By Joanna Cotler

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If I Were a Dog

By Joanna Cotler

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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.