David Olsen Books

2001 Preparing Families for the Future

By David Olsen, National Council On Family Relations.

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The ultimate book of words you should know

By David Olsen

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Contains more than 3,000 words, each with a definition and an example of usage.

"801 Things You Should Know gives you the lowdown on thoughts and events that transformed past civilizations into the cultures that we know today. Each entry explains a game-changing concept or mom...

801 things you should know

By David Olsen

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Roget s thesaurus of words for writers

By David Olsen

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Renewing Your Relationship

By Erin Belanger Freeh, David Olsen

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The words you should know

By David Olsen

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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.