Thomas Christensen Books

"Thomas Christensen's previous title 1616 : The World in Motion looked at a single year in the age of early maritime globalism--PW gave it a starred review, calling it 'a stunning overview of the n...

The Work of Music Theory

By Thomas Christensen

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"This collection brings together an anthology of articles by Thomas Christensen, one of the leading historians of music theory active today. Published over the span of the past 25 years, the select...

River of Ink

By Thomas Christensen

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With its title harkening back to the sack of Baghdad in 1258—when the Tigris ran black with the ink of books flung into the water by Mongol invaders—River of Ink is a collection of essa...

River of ink

By Thomas Christensen

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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.