Donald Porter Books

Day of the animals

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Having been adversely affected by ultra-violet rays triggering a killer instinct in all living things above 5,000 feet, humans, birds, insects, reptiles, and other animals meet in the Sierra Madre...

Sioux Arrows

By Donald Porter

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Inner running

By Donald Porter

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Inner Running

By Donald Porter

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Jubilee Jim and the Wizard of Wall Street

By Donald Porter

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Managing politics and Islam in Indonesia

By Donald J. Porter, Porter Donald J.

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CCDA

By Don Porter, James Chellis, Donald Porter, Todd Lammle

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Managing Politics and Islam in Indonesia

By Donald Porter

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Managing Politics and Islam in Indonesia

By Donald Porter

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Managing Politics and Islam in Indonesia

By Donald Porter

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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.