Irwin Unger Books

Everyday American history

By Irwin Unger, PH.D. Irwin Unger

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LBJ: A Life

By Debi Unger, Irwin Unger

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"Irwin and Debi Unger explore the enigmatic and complex figure of Lyndon B. Johnson as both a public and personal figure - examining his monumental achievements in the political arena, as well as h...

LBJ

By Debi Unger, Irwin Unger

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The Times Were a Changin

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These United States

By Irwin Unger

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American Issues a Primary Source Reader in United States History

By Irwin Unger

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Times Were a Changin

By Irwin Unge

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The Times Were a Changin'

By Debi Unger, Irwin Unger, Irwin Unger Editor Debi Unger Editor

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This is a must-have anthology of the milestone speeches, manifestos, court decisions, and groundbreaking journalism of the Sixties. No other period in American history has been more liberating, mor...

Land of progress

By Irwin Unger

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A textbook tracing the history of the United States, with emphasis on the post-Civil War period, which points out the relevance of the past to today.

The Greenback Era A Social and Political History of American Finance 1865 1879

By Irwin Unger

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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.