Patrick Jennings Books

The Beastly Arms

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Eleven-year-old Nickel, a boy with a great affinity for both animals and photography, moves into an apartment building run by the strange and mysterious Mr. Beastly and discovers a secret about the...

The wolving time

By Patrick Jennings

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In France during a time of witch-hunts, in a village with a corrupt priest, thirteen-year-old Lazlo longs to be able to turn into a wolf as his parents can, but also desires the friendship of a vil...

Out Standing In My Field

By Patrick Jennings

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Although fifth-grader Ty Cutter is named after baseball great Ty Cobb, he is the worst player on the Brewer's team--which happens to be coached by his overly-competitive father.

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.

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.

We Can t All Be Rattlesnakes

By Patrick Jennings

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Lucky cap

By Patrick Jennings

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Enzo starts middle school after an amazing summer trip with his father, a new manager at a popular sporting goods company, with a prototype baseball cap that seems to bring Enzo popularity and succ...

Lucky cap

By Patrick Jennings

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Guinea Dog 2

By Patrick Jennings

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Guinea Dog 3

By Patrick Jennings

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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.