Powers Mark Comics Author Books

Jim Butcher s The Dresden files

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"Harry Dresden is a man on the edge--and that is something that can be dangerous to friend and foe alike. He's been drafted by a senior member of the White Council of Wizards to investigate a serie...

Spy toys

By Powers Mark Comics Author

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Three toys with tiny computerized brains, rejected because they are not good with children, are recruited by Auntie Roz to be spy toys, whose first mission is to save a senator's son from being kid...

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.