Doug Johnson Books

Never ride your elephant to school

By Johnson Doug

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A humorous account of the disadvantages of bringing an elephant into the classroom.

Substitute teacher plans

By Johnson Doug

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Miss Huff prepares an unusual list of activities for the substitute teacher who is covering her class when she takes a much needed day off.

Never Babysit the Hippopotamuses

By Doug Johnson

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1998 99 Michigan Criminal Code

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Whole Houses Shaking

By Doug Johnson, Jim Bodeen

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After stumbling over a pregnant homeless woman and her child under a railroad track, eleven-year-old Paul begins to suspect that the strange boy with them is a guardian angel sent by the Lord to pr...

The indispensable librarian

By Johnson Doug

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Indispensable Teacher s Guide to Computer Skills

By Doug Johnson

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No Tomorrows

By Doug Johnson

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The Making

By Gerry McFarland

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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.