Karen Christensen Books

International Encyclopedia for Women & Sports: 1 International Encyclopedia for Women & Sports

By Pfister, Christensen, Guttmann

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International Encyclopedia for Women and Sports

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International Encyclopedia of Women and Sports - 3 Volume set

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"No other encyclopedia covers the world of women in international sports with such depth, currency, and detail. This three-volume, illustrated reference set provides articles on all aspects of the...

The Encyclopaedia of World Sport

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Encyclopedia of World Sport: From Ancient Times to the Present

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Your Child Your Health and How to Keep It

By Karen Christensen, Suzy Powling

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Encyclopedia of Modern Asia Turkic Language to Zuo Zongtang

By Karen Christensen, David Levinson

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Encyclopedia of Modern Asia Edition 1.

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"Intended for students and non-specialists, this six-volume set does an outstanding job of covering all aspects of modern Asia (economics, religion, technology, politics, education, the arts, envir...

Eco Living

By Karen Christensen

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Encyclopedia of community

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"This encyclopedia is a welcome exploration of the great variety of social networks that human beings create and participate in. Interdisciplinary in scope, the set includes contributions from some...

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.