Marc Andreyko Books

DC Universe Presents

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"From fan-favorite Mark Andreyko comes the next chapter of DC Universe Presents featuring the New 52 debut of Black Lightning and Blue Devil! The team of two VERY different heroes must work togethe...

Fairest

By Marc Andreyko

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"Cinderella returns in an all-new epic! After an assassination attempt on Snow White, Cind is called back into service to unravel an age-old conspiracy that dates back to that fateful midnight ball...

Batwoman

By Marc Andreyko

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"Kate Kane's life has always been one of intrigue and adventure, but since she took on the mantle of Batwoman, things have been in overdrive with no sign of slowing down! Join us as Batwoman starts...

Batwoman

By Marc Andreyko

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Wonder Woman 77

By Marc Andreyko

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"The classic series finally comes to the comic page in WONDER WOMAN '77 VOL. 1, continuing the adventures of the TV series starring Lynda Carter! Travel back to the sizzling '70s as the undercover...

Wonder Woman 77

By Marc Andreyko

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"Set in the world of the 1977 TV series, WONDER WOMAN '77 makes all that was retro new again. Amazonian Princess and Federal Agent Diana Prince--and her alter ego, the superheroine Wonder Woman--is...

Batman 66 Meets Wonder Woman 77

By Marc Andreyko, Jeff Parker

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Harley Ivy Meet Betty Veronica

By Paul Dini, Marc Andreyko

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Supergirl Vol. 1

By Marc Andreyko

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Blade

By Don McGregor, Marc Andreyko, Marv Wolfman, Christopher Golden

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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.