Harrison Thomas Books

Techno, rap, hip hop, grunge, alternative rock, bubblegum rock, boy bands, and contemporary country. As with all decades before, popular music in the 1990s was marked by change and continuity alike...

Music of the 1990s

By Harrison Thomas

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Music of the 1980s

By Harrison Thomas

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Music provides the backdrop for culture. This is especially true in the 1980s in the United States, when popular music became more commercialized than any time in previous history. The 80s was also...

Music of the 1980s

By Harrison Thomas

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Greek Religion

By Harrison Thomas

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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.