Paul Roland Books

Crime Scenes: Revealing the Science Behind the Evidence

By Paul Roland

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The Nazis and the occult

By Paul Roland

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Revealing the full extent of Hitler's obsession with the occult and the Nazis' fascination with symbols of arcane power such as The Ark of the Covenant and the Spear of Destiny, this book explains...

Providing a thorough look at crime scenes throughout the ages, highlighting those that have set a benchmark for police investigation, this title presents a detailed tour of the crime lab and a step...

In the Minds of Murderers

By Paul Roland

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Reincarnation

By Paul Roland

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The Complete Guide to Dreams

By Paul Roland

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Jazz Singers

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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.