David A. Adler Books

The Mystery at the Haunted House

By David A. Adler

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The Chocolate Fudge Mystery

By David A. Adler

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Cam Jansen: The Mystery of the Circus Clown 7

By David A. Adler

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The Cam Jansen books are perfect for young readers who are making the transition to chapter books, and Cam is a spunky young heroine whom readers have loved for over two decades. Now the first ten...

Cam Jansen: The Mystery of the Monster Movie 8

By David A. Adler

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The Cam Jansen books are perfect for young readers who are making the transition to chapter books, and Cam is a spunky young heroine whom readers have loved for over two decades. Now the first ten...

Cam Jansen: The Mystery of the Carnival Prize 9

By David A. Adler

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The Cam Jansen books are perfect for young readers who are making the transition to chapter books, and Cam is a spunky young heroine whom readers have loved for over two decades. Now the first ten...

Cam Jansen: The Mystery of the Dinosaur Bones 3

By David A. Adler

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No mystery is too great for super-sleuth Cam Jansen and her amazing photographic memory!Mysteries follow super-sleuth Cam Jansen everywhere she goes...even to the museum. Cam and her class are on a...

Cam Jansen: The Mystery of the Gold Coins 5

By David A. Adler

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The Cam Jansen books are perfect for young readers who are making the transition to chapter books, and Cam is a spunky young heroine whom readers have loved for over two decades. Now the first ten...

Cam Jansen: The Mystery of the Television Dog 4

By David A. Adler

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No mystery is too great for super-sleuth Cam Jansen and her amazing photographic memory! Mysteries follow super-sleuth Cam Jansen everywhere she goes...even to a book signing. Cam is waiting in lin...

Cam Jansen and the Basketball Mystery

By David A. Adler

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Don't Talk to Me About the War

By David A. Adler

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Thirteen-year-old Tommy Duncan just wants to root for the Brooklyn Dodgers and listen to his favorite radio programs. But it's 1940, and the world is about to change. All his friend Beth wants to d...

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.