David Humphries Books

Writing Lives: Exploring Literacy and Community

By Sara Garnes

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Mural Manual

By Rodney Mark, David Humphries

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Chemistry

By E. A. Robinson, Ronald J. Gillespie, David Humphries, N. Colin Laird

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How Dogs Work

By Daniel Tatarsky, David Humphries

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How Dogs Work

By Daniel Tatarsky Author David Humphries

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From nose to tail and everything in between — this is your definitive visual guide to understanding your four-legged friend!When your dog looks at you with those big, expressive puppy-dog eyes, do...

Different Dispatches

By David Humphries

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Sign for the Dream

By David Humphries

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Sign for the Dream

By David Humphries

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Take a visual journey through the world of music and learn the science behind it, too.Budding music fans will love discovering musical geniuses of every era, from Mozart and classical music to Bowi...

How Dogs Work

By Daniel Tatarsky Author David Humphries

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Take a sideways look at the dog--from head to tail, and everything in between.That humans all over the world love dogs is beyond doubt, but do we really understand our four-legged friends, beyond t...

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.