Mark Powell Books

The second edition Student's Books contain clearly defined topic and skills-based units, real-world tasks and more case studies, all which are instantly relevant to everyday business life developme...

In Company. Intermediate. Student's Book. Per Le Scuole Superiori. Con CD-ROM

By M. Powell

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"In Company is a fast-paced four-level business English course for professional adults who need to communicate in everyday business situations. It has established itself as the English course for p...

In Company

By Mark Powell

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In Company

By Clarke Simon, Mark Powell

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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.