Derek Fridolfs Books

Fort Solitude

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When Clark Kent and his Secret Hero Society friends, Bruce and Diana, are invited to a spring break academic retreat at Camp Evergreen, their initial fun with new and old friends is thrown into cha...

Zatanna

By Richard Horie, Paul Dini, John Kalisz, Cliff Chiang, Sharpe Dave Letterer, Tanya Horie

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Batman

By Paul Dini, Varios, Derek Fridolfs

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Justice League beyond

By Dustin Nguyen

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Batman: Li'l Gotham Vol. 1

By Dustin Nguyen, Derek Fridolfs

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Batman

By Derek Fridolfs

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"In these stories originally available only online and tying into the bestselling video game BATMAN: ARKHAM CITY, Dr. Hugo Strange has gained control of Arkham Asylum and is determined to keep the...

Batman

By Karen Traviss

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"The prequel series to the best-selling video game BATMAN: ARKHAM CITY! The mysterious new villian known as the Bookbinder has corrupted Gotham City's food supply leaving the Dark Knight in a race...

Batman

By Dustin Nguyen

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During Japan's Month of Waters, Aquaman calls upon the Bat-family to face off against all manner of sea creatures. And when Uncle Sam steals all of the fireworks on Independence Day, Batman must st...

Justice League beyond

By Derek Fridolfs

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"Spinning off from the hit WB series BATMAN BEYOND comes JUSTICE LEAGUE BEYOND! Sector 2814's newest Green Lantern: Kai-Ro has been posing as a student to expose a secret organization called The Br...

Zatanna by Paul Dini

By Paul Dini, Adam Beechen, Dustin Nguyen, Derek Fridolfs, JesuI1s Saiz, Cliff Chiang, Lilah Sturges, Rick Mays, Roux St C Phane Comic Book Artist, Chad Hardin

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"Emmy award-winning writer Paul Dini's complete collection of ZATANNA stories are here in one graphic novel! The acclaimed creator of BATMAN: THE ANIMATED SERIES has long had a history with the pre...

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.