Jonathan Etter Books

Quinn Martin, producer

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"Quinn Martin was the producer of such television shows as The Fugitive, The FBI, The Invaders, Barnaby Jones, The Untouchables, The Streets of San Francisco, and Cannon. This book tells how each m...

Gangway Lord

By Jonathan Etter

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Gangway Lord Here Come the Brides Book

By Robert Brown Undifferentiated, Jonathan Etter

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Quinn Martin Producer

By Walter Grauman, Jonathan Etter

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Quinn Martin Producer

By Jonathan Etter

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There s an Old Polish Proverb That Says Banacek

By Jonathan Etter

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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.