Lorus Johnson Milne Books

National Audubon Society Field Guide to Insects and Spiders

By Lorus Johnson Milne, National Audubon Society

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The most comprehensive field guide available to the insects and spiders of North America--a must-have for any enthusiast's day pack or home library--from the go-to reference source for over 18 mill...

The Audubon Society book of insects

By Les Line

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The Biotic World and Man

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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.