Michael J. Walker Books

Instant PHP 4
Instant PHP 4

By Walker Michael J.

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Php Developer s Dictionary
Migrating animals
Migrating animals

By Walker Michael J.

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Describes the migratory habits of more than 23 animals and discusses the reasons for and the dangers encountered during their journeys.

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The field guide
The field guide

By Walker Michael J.

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Early Evolution of Human Memory
Ensayo de caracterizacion de poblaciones del sureste espanol 3000 a 1500 a. J.C.
Agricultural Location
Agricultural Location

By Walker Michael J.

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Baptists at the table
Baptists at the table

By Michael J. Walker

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Palaeolithic Pioneers
Palaeolithic Pioneers

By Walker Michael J.

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Palaeolithic Pioneers
Palaeolithic Pioneers

By Walker Michael J.

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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.

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