Dennis J. Cohen Books

The project manager's MBA

By Robert J. Graham, Robert Graham, Dennis J. Cohen

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"This book provides a crash course in the business basics that every project manager needs to understand. The authors - former instructors at the Wharton School of Business and the University of Pe...

Project Manager s MBA

By Dennis J. Cohen, Graham Robert J.

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The Project Manager s MBA

By Dennis J. Cohen

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The Venture Project Manager

By Dennis Cohen

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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.