Bob Mayer Books

Excalibur
Excalibur

By Bob Mayer

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Time patrol
Time patrol

By Bob Mayer

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Hidden deep beneath the Metropolitan Museum of Art is the Time Patrol, a secret agency charged with protecting the world's timeline from the evil forces who wish to alter it. When the Patrol disapp...

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The Rift
The Rift

By Bob Mayer

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Dragon sim 13
Dragon sim 13

By Bob Mayer

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Independence Day
Independence Day

By Bob Mayer

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Don t Look Down
Don t Look Down

By Jennifer Crusie, Bob Mayer

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Truth
Truth

By Bob Mayer

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I Judas the 5th Gospel
I Judas the 5th Gospel

By Bob Mayer

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Synbat
Synbat

By Bob Mayer

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Section 8
Section 8

By Bob Mayer

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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.

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