Patrick Jennings Books

When dogs go missing, one boy will find out why. And the answer is out of this world. Nothing gets past Logan. When he observes that the neighborhood's dogs are mysteriously vanishing, he suspects...

Wish Riders

By Patrick Jennings

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Wish Riders

By Patrick Jennings

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Guinea Dog 3

By Patrick Jennings

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Guinea dog

By Patrick Jennings

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When his mother brings home a guinea pig instead of the dog he has always wanted, fifth-grader Rufus is not happy--until the rodent starts acting exactly like a dog. When his mother brings home a...

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.