Debbie Geller Books

In My Life: The Brian Epstein Story

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Without the determination, magnetism, vision, good manners, respectable clothes and financial security of Brian Epstein, no one would ever have heard of John, Paul, George, and Ringo. In Liverpool,...

In My Life: The Brian Epstein Story

By Debbie Geller

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Brian Epstein

By Debbie Geller, Anthony Wall, Compiled And Written By Deborah Geller

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A biography of the manager of The Beatles, a Jewish homosexual who drank, gambled compulsively and took drugs to excess, but had the capacity to charm. The book portrays a man tormented by arrest,...

Living Longer And Loving It

By Debbie Geller

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The Brian Epstein Story

By Geller, Debbie Geller, Deborah

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In My Life

By Debbie Geller, Anthony Wall

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Billy Joel - An Illustrated Biography

By Debbie Geller, Debbie Geller & Tom Hibbert

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Billy Joel: An Illustrated Biography

By Debbie Geller, Tom Hibbert

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ビリー・ジョエル

By Debbie Geller

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Rocktopicon: Unlikely Questions And Their Surprising Answers

By Dave Marsh, Debbie Geller, Sandra Choron

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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.