J. Douglas Lee Books

Animal 1 2 3!

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Illustrations and alliterative text introduce word and number concepts through such combinations as one overeating orangutan and twelve tunneling tapirs. Includes special activities encouraging the...

Animal 1 2 3!

By J. Douglas Lee

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Opposites Audio Cassette and Book Bright Idea Read Alongs

By J. Douglas Lee, John Farman

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Picture Dictionary Audio Cassette and Book Bright Idea Read Alongs

By J. Douglas Lee, David Mostyn

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First Words Audio Cassette and Book Bright Idea Read Alongs

By J. Douglas Lee, David Mostyn

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Sounds Audio Cassette and Book Bright Idea Read Alongs

By J. Douglas Lee, Lesley Smith

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Animal 1 2 3 Audio Cassette and Book Bright Idea Read Alongs

By Elphin Lloyd Jones, J. Douglas Lee

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Animal Abc Audio Cassette and Book Bright Idea Read Alongs

By Peter Woolcock, J. Douglas Lee

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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.