D. Phillip Sponenberg Books

Heritage breeds matter, and they are often a better choice than conventional breeds for small farms and backyards. This eloquent, inviting, visual guide explains why conserving heritage breeds is i...

An introduction to heritage breeds

By D. Phillip Sponenberg

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A rare breeds album of American livestock

By Carolyn J. Christman, Carolyn Christman

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Managing breeds for a secure future

By D. Phillip Sponenberg

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Equine Color Genetics

By Rebecca Bellone, D. Phillip Sponenberg

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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.