Michael Spencer Books

German for Starters Set of 4 cassettes

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German for Starters Study book

By Diane Collett, Michael Spencer

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German for Starters Teacher s resource book

By Diane Collett, Michael Spencer

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Multiwavelength atlas of galaxies

By Glen H. Mackie, Glen Mackie

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"Since the radio signature of our own Milky Way was detected in 1931, galaxies have been observed from ultra-high energy gamma rays to long wavelength radio waves, providing fundamental insights in...

Help Yourself to Advanced German Grammar HYT

By M. McCrorie, Morag McCrorie, Alan Wesson

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New Caledonia

By Alan Ward, Michael Spencer

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States of Injustice

By Michael Spencer

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Early firearms 1300 1800

By Michael Spencer

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Aufgeschlossen

By Alan Wesson, E.J. Neather, Michael Spencer, Martina Esser

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Aufgeschlossen

By Ted Neather, Alan Wesson, Michael Spencer, Martina Esser

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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.