Gerald Leinwand Books

Pageant of World History: Annotated Teacher's Edition

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Drugs

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Fifteen articles and personal narratives explore the mental, moral, physical, and social implications of drug abuse and some possible causes of and solutions to the problem.

The negro in the city

By Gerald Leinwand

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Abyss Section 31 Book Three

By Jeffrey Lang, David Weddle, Gerald Leinwand

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HUNGER LEINWAND Problems of American society

By Barbara Milbauer, Gerald Leinwand

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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.