Jack Lester Jacobs Books

"The history of the Frankfurt School cannot be fully told without examining the relationships of critical theorists to their Jewish family backgrounds. And yet in all three of these eras, Jewish ma...

Bundist counterculture in interwar Poland

By Jack Lester Jacobs

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Bundist Counterculture Interwar Poland

By Jack Jacobs

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Jews and Leftist Politics

By Jack Jacobs

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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.