David Catrow Books

Jack Spaniel

By David Catrow

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Jack Spaniel searches for dinosaurs in his back yard.

Monster Mash by David Catrow 2012 05 03

By David Catrow

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Max Spaniel Funny Lunch Turtleback School Library Binding Edition Max Spaniel Scholastic Reader Level 1

By David Catrow

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She s Wearing a Dead Bird on Her Head

By Kathryn Lasky

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Rotten Teeth

By David Catrow, Laura Simms

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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.