Lynn Haller Books

The Very best of children's book illustration

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Fresh ideas in corporate identity

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Fresh ideas in letterhead and business card design 3

By Lynn Haller

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Page design

By Lynn Haller

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The end of print is a hoax. A hoax, that is, if the quantity and quality of entries for our first Creative Edge book are to be believed. Open this book, and you'll probably agree that print design...

Creative Edge Type Creative Edge

By Lynn Haller

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Fresh Ideas in Letterheads and Logos 2

By Gail Deibler Finke, Lynn Haller

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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.