Daniel Cohen Books

The magic of the little people.

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Discusses the belief in and scientific theories on the existence of fairies, elves, hobgoblins, dwarfs, and other little people.

The Greatest Monsters in the World

By Daniel Cohen

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Science Fiction s Greatest Monsters

By Daniel Cohen

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The Simon & Schuster question & answer book, computers

By Daniel Cohen

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Presents, in a question and answer format, information about the history of computers, how they work, how to program them, and their future potential.

The Kid s Guide to Home Computers

By Daniel Cohen, Susan 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.