Carl De Keyzer Books

U.S.S.R, 1989, S.S.S.R.

By Carl De Keyzer

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U.S.S.R, 1989, S.S.S.R.

By Carl De Keyzer

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In 1988 and 1989 Belgian photographer Carl De Keyzer made numerous visits to the Soviet Union, photographing throughout the country. Homo Sovieticus is the result. De Keyzer does not allow himself...

Trinity

By Keyzer Carl De, Carl De Keyzer

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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.