Jeffery L. Schatzer Books

Jarek Sokolowski and some of his Polish American friends sign up for the Civilian Conservation Corps during the Depression and go to work in the Upper Peninsula of Michigan, clearing land, fighting...

Professor Tuesday s awesome adventures in history.

By Jeffery L. Schatzer

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When an eccentric history professor takes the students from Miss Pepper's class back in time to visit Native American peoples of the woodland tribes, he and one of the students get stuck during Chi...

Fires in the Wilderness

By Jeffery Schatzer

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Professor Tuesday s Awesome Adventures Book 2

By Jeffery Schatzer

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Professor Tuesday s awesome adventures in history

By Jeffery L. Schatzer

Average: 0.00, 0 Ratings

The eccentric Professor Tuesday takes three children from Mrs. Pepper's class, along with his nephew, Mister Adams, back in time to learn about the immigrants who helped build the state of Michigan.

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.