Cohen Peter Books

The gospel according to the Harvard Business School.

By Cohen Peter

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Olson's meat pies

By Cohen Peter

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Things are just not the same in Olsson's fabulous meat pie factory when a temporary lack of funds forces him to make substitutions for his usual quality ingredients.

Mr. Bohm and the herring

By Cohen Peter

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After Mr. Bohm teaches a herring to walk, he wonders if it will remember how to swim if it falls into water.

Cannabisbeleid in Duitsland Frankrijk en de Verenigde Staten

By Cohen Peter, Arjan Sas

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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.