Robert Singerman Books

"This work examines Egyptian mummies as artifacts in pre-1900 America--how they got here, what happened to them, and how they were perceived. Collected newspaper accounts and other documents reveal...

The Jews in Spain and Portugal

By Robert Singerman

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Jewish and Hebrew onomastics

By Robert Singerman

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American library book catalogues, 1801-1875

By Robert Singerman

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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.