Eric Andrews Katz Books

Balls Chain

By Eric Andrews Katz

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Tartarus

By Eric Andrews Katz

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Tartarus

By Eric Andrews Katz

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Gay city

By Eric Andrews Katz, Vincent Kovar

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"There are always at least two viewpoints to every story and yet we usually only hear one. A different perspective can create an entirely different story than the commonly known tale; the other sid...

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.