Juan Ferreyra Books

SPINE-TINGLING SPIDER-MAN

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The scariest Spider-Man story you've ever read! When a dangerous song takes all of New York City on a haunting journey through their dreams, a sleep-deprived Peter Parker must fight back his fears...

CARNAGE VOL. 2: SYMBIOSIS NECROSIS

By Torunn Gronbekk

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The symbiotic psychopath continues his reign of terror! Born anew in symbiote goo and blood, Cletus Kasady is more dangerous and violent than ever before - and he has his sights dead set on the uns...

King in Black

By Gerry Duggan, Matthew Rosenberg, Luke Ross, Juan Ferreyra

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Punisher Kill Krew

By Gerry Duggan, Juan Ferreyra

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DEADLY NEIGHBORHOOD SPIDER-MAN

By B. Earl

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A revolutionary dark take on Spider-Man! What is reality and what is dream? What is science and what is magic? At the intersection of these crossroads stands the Deadly Neighborhood Spider-Man. Pet...

Spider Man Noir

By Margaret Stohl, Juan Ferreyra

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Green Arrow Vol. 1 Rebirth

By Otto Schmidt, Ben Percy, Juan Ferreyra

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Citizen s Arrest

By Juan Ferreyra, Benjamin Percy

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Complete Colder Omnibus

By Paul Tobin, Juan Ferreyra

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Rex Mundi Omnibus Volume 1

By Jim DiBartolo, Arvid Nelson, EricJ, Brian Churilla, Juan Ferreyra

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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.