David A. Adler Books

Cam Jansen: the Mystery of the Babe Ruth Baseball

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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 community hobby show. Cam and Eri...

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 Monkey House 10

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 zoo. When a few monkeys suddenly...

Cam Jansen: the Mystery of Flight 54 12

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 airport. Cam and Eric are greetin...

Young Cam Jansen and the Zoo Note Mystery

By David A. Adler

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Cam and Eric's class is going on a field trip to the zoo. But Eric can't find his permission slip, and without it, he can't go on the field trip. Where did it go? Did he drop it somewhere? Was it s...

Cam Jansen: the Mystery at the Haunted House 13

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 an amusement park. Cam, Eric, and Cam...

Cam Jansen: the Chocolate Fudge Mystery 14

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 while selling candy door-to-door. Cam an...

Cam Jansen: the Scary Snake Mystery 17

By David A. Adler

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The Cam Jansen series is perfect for young readers who are making the transition to chapter books. The first fifteen books in the series have received updated covers, and the series redesign contin...

Cam Jansen: the Catnapping Mystery 18

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 hotel. Cam is visiting her aunt Mol...

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.