Raymond Obstfeld Books

Kinky Cats, Immortal Amoebas, and Nine-Armed Octopuses: Weird, Wild, and Wonderful Behaviors in the Animal World

By Raymond Obstfeld

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Masked Dog

By Raymond Obstfeld

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Remington Contract

By Raymond Obstfeld, Obstfeld

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The joker and the thief

By Raymond Obstfeld

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As he becomes involved with a tough, intelligent teenager who has escaped from a juvenile detention center, seventeen-year-old Eric begins to examine his well-planned life and his relationships wit...

Brain Wave

By Raymond Obstfeld

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Joker and the Thief The

By Raymond Obstfeld

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Dead Bolt

By Raymond Obstfeld

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Dead Heat

By Raymond Obstfeld

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The Remington factor

By Raymond Obstfeld

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Earth Angel

By Raymond Obstfeld

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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.