Elizabeth Clark Books

Women and religion

By Elizabeth A. Clark

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Fieldwork in biology

By Clark Elizabeth Bsc.

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St. Augustine On Marriage And Sexuality

By Elizabeth Clark, Augustine, Augustine Saint, Bishop Of Hippo, Augustine Of Hippo, Clark, Elizabeth A. (Elizabeth Ann), 1938-

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Augustine of Hippo (b. A.D. 354) is considered the single most influential theologian in the history of the Church in the West. Among his many contributions, Augustine developed a sexual ethic that...

Practical Tinker Board

By Liz Clark

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Star navigation

By Barbara L. Adams

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The star navigation reader

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Tchaikovsky

By Elizabeth Clark

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Presents a biography of the nineteenth-century Russian composer.

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.