Elisa Ludwig Books

Fifteen-year-old Willa takes to the road with Aidan in a stolen car after her artist mother disappears, heading for the Santa Barbara, California, hotel from which her mother sent an email, but soo...

Pretty Wanted

By Elisa Ludwig

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Judy Blume

By Elisa Ludwig

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A biography of Judy Blume, author of a number of popular and controversial books for young people.

Shel Silverstein

By Elisa Ludwig

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Who Wrote That

By Elizabeth Silverthorne, Elisa Ludwig, Margaret Speaker Yuan

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Coin Heist

By Elisa Ludwig

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Coin heist

By Elisa Ludwig

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"The last place you'd expect to find a team of criminals is at a prestigious Philadelphia prep school. But on a class trip to the U.S. Mint - which prints a million new coins every 30 minutes - an...

Coin Heist

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Coin Heist

By Elisa Ludwig

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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.