David J. Pelzer Books

A man named Dave

By David J. Pelzer

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Help Yourself

By David J. Pelzer

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The Privilege of Youth

By David J. Pelzer

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A child called It

By David J. Pelzer

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This book chronicles the unforgettable account of one of the most severe child abuse cases in California history. It is the story of Dave Pelzer, who was brutally beaten and starved by his emotiona...

Child Called It

By David J. Pelzer

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Lost Boy

By David J. Pelzer

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The Lost Boy

By David J. Pelzer

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Man Named Dave

By David J. Pelzer

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Help Yourself

By David J. Pelzer

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A Man Named Dave

By David J. Pelzer

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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.