Christina Leaf Books

Gray squirrels

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"Simple text and full-color photography introduce beginning readers to gray squirrels. Developed by literacy experts for students in kindergarten through third grade"--

Gray wolves

By Christina Leaf

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"Simple text and full-color photography introduce beginning readers to gray wolves. Developed by literacy experts for students in kindergarten through third grade"--

Great horned owls

By Christina Leaf

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"Simple text and full-color photography introduce beginning readers to greathorned owls. Developed by literacy experts for students in kindergarten through third grade"--

Brown Bats

By Christina Leaf

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Devon Rexes

By Christina Leaf

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Scottish Folds

By Christina Leaf

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Humpback Whales

By Christina Leaf

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Octopuses

By Christina Leaf

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Jeff Kinney

By Christina Leaf

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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.