David Lester Books

The Death Penalty: Issues and Answers

By David Lester

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Crisis Intervention and Counseling by Telephone

By David Lester

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"The text offers specific techniques to deal with out-of-control situations with the highly important initial steps to protect the caller, the crisis worker, and the community. The scope of the boo...

Crisis Intervention and Counseling by Telephone

By David Lester

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Theories of Suicide

By David Lester, III Gunn, John F.

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Understanding and preventing college student suicide

By Dorian A. Lamis

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Understanding and preventing college student suicide

By Dorian A. Lamis

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The murderer and his murder

By David Lester

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Can we prevent suicide?

By David Lester

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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.