Pamela Barclay Books

Duke Ellington ambassador of music.

By Pamela Barclay

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A biography of the black musician who in fifty years has composed 2000 songs and performed them all over the world.

Secretariat

By Pamela Barclay

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A biography of the horse who in 1973 became the ninth horse in ninety-one years to win the Triple Crown.

Charley Pride.

By Pamela Barclay

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A biography of the black man who broke the color line in country music.

Secretariat

By Harold Henriksen, Pamela Barclay

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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.