John Sill Books

About Insects
About Insects

By Cathryn P. Sill, John Sill

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Birds
The Bird Identification Calendar 1990 counter display
About Mammals
About Mammals

By Cathryn P. Sill, John Sill

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About Habitats
About Habitats

By Cathryn P. Sill, John Sill

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About Habitats: Forests
About Habitats: Forests

By By Cathryn Sill Illustrated By John Sill

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This beginner's guide and classroom favorite from the creators of the About Habitats series explores the major attributes of forests. The author, an educator by training, uses simple, easy-to-under...

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Backyard Bird Walk
Backyard Bird Walk

By Lang Elliott

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Birds
A Field Guide To Littleknown And Seldomseen Birds Of North America
About Reptiles
About Reptiles

By Cathryn P. Sill

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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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