Michael Jay Books

Gay Love Signs: The New Astrology Guide for Men Who Love Men

By Michael Jay

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Space shuttle

By Michael Jay, Jay Michael

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Explains how the space shuttle works and describes a shuttle trip from lift-off to touchdown.

The Planets

By Jay Michael, Michael Jay

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Tanks

By Michael Jay, Jay Michael

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Explores the features and uses, both modern and historic, of tanks and speculates on the tank of the future.

A guide to planning and enjoying a camping trip, with tips on reading maps, preparing for adverse weather conditions, building a fire, and including an introduction to competitive orienteering, a h...

Swimming and scuba diving

By Michael Jay

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Examines the various strokes and techniques of swimming and diving and surveys the history, equipment, and training involved in scuba diving.

The Altherian Code

By Michael Jay

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Age of Dinosaurs Prehistoric Animals

By Michael Jay

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Ice Age Beasts Prehistoric Animals

By Michael Jay

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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.