Norma Barzman Books

Rich Dreams

By Ben Barzman, Norma Barzman

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The Red and the Blacklist

By Norma Barzman

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"When Norma Levor first hit Hollywood, she was a vivacious twenty-one-year-old, fresh out of Harvard and her first marriage, clad in her perky pink cashmere top. Within an hour of being unleashed o...

The Red and the Blacklist

By Norma Barzman

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The End of Romance

By Norma Barzman

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Convoitises

By Norma Barzman

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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.