Michael Eastham Books

The Asymptotic Solution of Linear Differential Systems: Applications of the Levinson Theorem

By M. S. P. Eastham

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Common sense income strategies

By Eastham Michael Financial Executive

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This book begins with the idea that when we reach the age of 50, we need to change from a portfolio filled with stocks and growth investment strategies to step-by-step strategies to build out your...

The Seventh Shadow

By Michael Eastham, Ian McLeod

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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.