Graham Johnson Books

Cell Biology E Book

By Graham Johnson, Jennifer Lippincott Schwartz, William C. Earnshaw, Thomas D. Pollard

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Images You Should Not Masturbate To

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Choking the chicken, spanking the monkey, airing the orchid-whatever you call it, none of the images in this book will encourage the gentle art of self-pleasure. This deceptively simple and strange...

Rejected Books

By Graham Johnson, Rob Hibbert

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Rejected Books is a collection of forty hilariously unrealistic, totally cringe-worthy covers for books that will never, ever be published—from the authors of Images You Should Not Masturbate...

Gabriel Faure

By Graham Johnson

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Britten Voice and Piano

By Graham Johnson

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Gabriel Faure

By Graham Johnson

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Britten Voice and Piano

By Graham Johnson

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Britten Voice and Piano

By Graham Johnson

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Britten Voice and Piano

By Graham Johnson

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Britten Voice and Piano

By Graham Johnson

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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.