Glenn Murray Books

Walter the Farting Dog

By Glenn Murray, Audrey Colman, William Kotzwinkle

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Rough Weather Ahead for Walter the Farting Dog

By Glenn Murray, Audrey Colman, William Kotzwinkle, Elizabeth Gundy

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Walter the Farting Dog

By Glenn Murray, William Kotzwinkle

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Segovia y la Moneda Desde el As Romano Hasta el Museo de la Real Casa de Moneda The Coins of Segovia

By Glenn Murray, Asociacion Amigos De La Casa De Moneda De Segovia, Jose Orcajo

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Walter the Farting Dog Goes on a Cruise

By Glenn Murray, William Kotzwinkle, Elizabeth Gundy

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Because his farts create unpleasantness for everyone on a cruise ship, Walter the dog continues the journey in a lifeboat, but when the ship's computer crashes, causing the liner to drift, Walter a...

Memorable Conversations

By Glenn Murray

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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.