Mark Powell Books

In Company Intermediate: Class Cassettes

By Mark Powell

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In Company Upper Intermediate Cassette x3

By Mark Powell

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New Business Matters Workbook

By Charles Mercer

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Small treasons

By Powell Mark

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"Tess Maynard's life is coming apart. At home with her three young children in her husband's small north Georgia hometown, she is steadily becoming obsessed with an American journalist captured in...

"In the late summer of 1944, fifteen-year-old Ernest Cobb flees into the dense forests of the Blue Ridge Mountains. Behind him, in his South Carolina hometown, the girl he thought he had impregnate...

Approaches to the Study of Poems from Wales

By Powell Mark Ross Mike

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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.