Daniel Cohen Books

Pachycephalosaurus Discovering Dinosaurs

By Daniel Cohen

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Allosaurus and other Jurassic meat-eaters

By Daniel Cohen

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Describes four dinosaurs from the Jurassic period including Allosaurus, Dilophosaurus, Ceratosaurus, and Coelurus.

Stegosaurus and other Jurassic plant-eaters

By Daniel Cohen

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Describes what is known about four different kinds of dinosaurs that lived in parts of the United States millions of years ago.

Triceratops and other Cretaceous plant-eaters

By Daniel Cohen

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Describes what is known about three different types of dinosaurs that lived in parts of the United States and Canada from 140 to 65 million years ago.

Prophets of doom

By Daniel Cohen

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Examines all kinds of prophecies, particularly those dealing with the end of the world, from such sources as the Bible, Greek oracles, Nostradamus, and Edgar Cayce.

Animal rights

By Daniel Cohen

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Discusses animals as a food source, as the objects of hunting and trapping, as pets, and as the subject of the animal rights movement.

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.