Ray DiPalma Books

The Joy Of Signing: Second Edition

By Lottie Riekehof, Lottie L. Riekehof, Ray DiPalma

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This is a guide for mastering the current basic signs used to communicate with deaf people in either the word order of the English language or in the American Sign Language pattern. It provides the...

Eldridge Cleaver visits Creede, Colorado, & other poems

By Ray DiPalma, Hall Walter

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Raik

By Ray DiPalma

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Motion of the Cypher

By Ray Dipalma

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The jukebox of Memnon

By Ray DiPalma

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Provocations

By Ray DiPalma

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Obedient laughter

By Ray DiPalma

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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.