Paul Kupperberg Books

Flamebird and Nightwing, heroes of the bottle city of Kandor, soar in this new collection of tales. Explore the world of Krypton through the adventures of Flamebird and Nightwing, as new heroes of...

Daring new adventures of Supergirl

By Paul Kupperberg

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"The new chapter in the life and times of the Girl of Steel is here in Daring New Adventures of Supergirl Vol. 1! Shot in a rocket from the same planet as her heroic cousin, Kara Zor-El crash lande...

Daring new adventures of Supergirl

By Paul Kupperberg

Average: 0.00, 0 Ratings

Theres more to college student Linda Danvers than meets the eye. Rocketed from the planet Krypton and crash-landing on Earth years after her legendary cousin, Superman, Linda is secretly Kara Zor-E...

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.