Mary Danby Books

Funniest Joke Books

By Mary Danby, Joseph Rosenbloom

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65 Great Tales of the Supernatural

By Mary Danby

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Rotten riddles and goofy gags

By Mary Danby

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An illustrated collection of jokes and riddles.

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.

Mary Danby Books

A Single Girl

The best of friends

Funniest Joke Books

Rotten Riddles Goofy Gags

Rotten Riddles Goofy Gags

65 Great Tales of the Supernatural

65 Great Tales of Horror

65 Great Spine Chillers

The Awful Joke Book

Rotten riddles and goofy gags

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?