Mark Sproule Jones Books

Governments at work

By M. H. Sproule Jones, Mark Sproule Jones

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Governments at work

By Mark Sproule Jones

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Restoration of the Great Lakes

By Mark Sproule Jones

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Real world of pollution control

By Mark Sproule Jones

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Restoration of the Great Lakes

By Mark Sproule Jones

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"The Great Lakes of North America are one of the world's most important natural resources. Home to more than 33 million Canadians and Americans, and the source of vast quantities of fish, hydroelec...

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.