Daniel Cohen Books

The encyclopedia of ghosts

By Daniel Cohen, John Ball

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The encyclopedia of the strange

By Daniel Cohen

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Carl Sagan: Superstar scientist

By Daniel Cohen

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A career biography of a celebrity scientist who has brought astronomy to books, magazines, and television, as well as to his Cornell University classroom.

The encyclopedia of unsolved crimes

By Daniel Cohen

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Phone call from a ghost

By Daniel Cohen

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A collection of ghostly encounters, all concerning American ghosts reported in such places as suburban homes, city apartments, at a state college, and on airplanes.

Magicians, wizards, & sorcerers.

By Daniel Cohen

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Traces the lives and careers of some of the most famous magicians in history. Included are Simon Magus, Cagliostro, Cornelius Agrippa, Aleister Crowley, and others.

Curses, Hexes and Spells

By Daniel Cohen

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Recounts curses on families, creatures, places, wanderers, and ghosts. Also describes amulets and talismans which provide protection.

Curses, hexes & spells.

By Daniel Cohen

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Recounts curses on families, creatures, places, wanderers, and ghosts. Also describes amulets and talismans which provide protection.

The world of UFOs

By Daniel Cohen

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A history of unidentified flying objects including accounts of several famous sightings and results of federal investigations.

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.