Thomas Deer Books

Transformers G.I. Joe

By John Wycough, Gilberto Lazcano, John Barber, Christos Gage, Priscilla Tramontano, Guido Guido, Thomas Deer, Chris Mercier, Tom B. Long, Ilias Kyriazis, Aubrey Sitterson, Mark Roberts, Shawn Lee

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First, with Cybertron under siege from Baron Ironblood, it s up to Optimus Prime and Arcee to defend their homeland, and the Revolutionaries team is caught in the middle! Then, back on Earth, Rom f...

Star Trek: Year Five - Odyssey's End (Book 1)

By Jackson Lanzing Collin Kelly

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Join the crew of the original Starship Enterprise in these all-new adventures near the end of their five-year mission.The crew of the U.S.S. Enterprise left Earth four years ago. They've traveled t...

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.