Gregory John Books

The tinker and the cobbler

By John Gregory, Gregory John

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Thirty English and American poems with instructions for using them in the classroom with sound effects and music.

Understanding ballet&bthe steps pf the dance from classroom to stage

By Gregory John

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Investigating with TesselTiles

By John Gregory, Gregory John

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"The activities in this book focus on using a scientific approach coupled with concrete models, called TesselTiles, to demonstrate and explain complex mathematical ideas."--P. 2.

Revelation s Dark Morning Star Rising

By Gregory John

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Cases on Social Issues

By Gregory John, Deirdre Maultsaid

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Cases on Social Issues: For Class Discussion was inspired by students and co-authored by people who are usually under-represented in higher education. These realistic, emotional cases are designed...

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.