Terri Sullivan Books

Killer Clown

By Terri Sullivan

Average: 0.00, 0 Ratings

Killer Clown

By Terri Sullivan

Average: 0.00, 0 Ratings

Killer Clown

By Terri Sullivan

Average: 0.00, 0 Ratings

Killer Clown

By Terri Sullivan, Peter T. Maiken

Average: 0.00, 0 Ratings

Killer Clown

By Terri Sullivan

Average: 0.00, 0 Ratings

The Real Story Of John Wayne Gacy-- By The Man Who Helped Catch HimHe was a model citizen. A hospital volunteer. And one of the most sadistic serial killers of all time. But few people could see t...

Killer Clown

By Terri Sullivan

Average: 0.00, 0 Ratings

“An unnerving true crime story of murder, terror, and justice.” —Dallas Morning News Updated with the latest DNA findings and a new foreword by Gregg Olsen!The definitive book on...

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.