Karen Perez Books

Fish
Fish

By Karen Perez

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Fish
Fish

By Karen Perez

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Rainforest animals
Rainforest animals

By Karen Perez

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Large close-up photographs and simple text provide an introduction to animals of the rainforest.

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Fish
Fish

By Karen Perez

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Full-color picture book of fishes of all colors, shapes, and sizes.

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Baby Animals
Baby Animals

By Karen Perez, Weldon Weldon Owen

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Underwater Animals
Birds
Birds

By Karen Perez, Weldon Weldon Owen

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Kittens
Kittens

By Karen Perez, Weldon Weldon Owen

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Farm Animals
Farm Animals

By Karen Perez, Weldon Weldon Owen

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Fish
Fish

By Karen Perez, Weldon Weldon Owen

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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.

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