Tamra Bonvillain Books

Once upon a Time at the End of the World Vol. 3

By Leila Del Duca, Tamra Bonvillain, Jason Aaron

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The Complete Angel Catbird

By Tamra Bonvillain, Margaret Atwood Johnnie Christmas

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From the Booker Prize-winning author of The Handmaid's Tale, comes the complete collection of the #1 New York Times bestselling graphic novel from Margaret Atwood!Internationally best-selling and...

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.