Ann Matthews Books

The Baby Sitters Club Mystery 1 4 4 Volumes

By Ann M. Martin

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The All New Mallory Pike

By Ann M. Martin

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Paramount Pictures presents Explorers

By Ann Matthews

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The journey of Natty Gann storybook

By Ann Matthews

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Separated from her father by the harsh conditions of the Great Depression, Natty makes a daring cross-country journey in the company of a wolf.

Paramount Pictures Presents Clue

By Ann Matthews, John Landis, Janathan Lynn

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Punky Brewster and the great dog escape

By Ann Matthews, Ann M. Martin

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Punky's magical friend Glomer releases all the dogs at the pound, not realizing their owners are on the way to get them.

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.