William Roll Books

Poltergeist Expernce

By William, William Roll, ROLL

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The Poltergeist

By William G. Roll, William Roll

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Unleashed: Of Poltergeists And Murder: The Curious Story Of Tina Resch

By Valerie Storey, William G. Roll, William Roll, William Roll & Valerie Storey

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One scientist's account of the poltergeist case that made headlines across the country -- and the riveting examination of a child's mysterious murder.When she was just fourteen years old, Tina Resc...

Unleashed: Of Poltergeists And Murder: The Curious Story Of Tina Resch

By Valerie Storey, William Roll, William Roll & Valerie Storey

Average: 0.00, 0 Ratings

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.