Pat Olliffe Books

Deadpool Classic Companion

By Larry Hama, Tom Brevoort, Fabian Nicieza, Mike Kanterovich, Pat Olliffe

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Spider Girl Vol. 3

By Tom DeFalco, Pat Olliffe

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MARVEL SUPER HEROES SECRET WARS: BATTLEWORLD

By Tom DeFalco

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Return to Battleworld! Get ready for a new story set during the 1980s classic SECRET WARS! On the Beyonder's patchwork planet, Spider-Man has just donned his new alien black costume. But as Reed Ri...

INCREDIBLE HULK BY PETER DAVID OMNIBUS VOL. 5

By Peter David

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You can't keep Peter David away from the Hulk for long! The legendary writer has returned to his signature character many times, across different eras and realities - but in the far future, how wil...

Thor Epic Collection

By Ron Frenz, Herb Trimpe, Roy Thomas, Pat Olliffe, Tom Defalco

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Spider Girl

By Ron Frenz, Tom DeFalco, Pat Olliffe

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Untold Tales of Spider Man

By Ron Frenz, Paul Lee, Pat Olliffe, Kurt Busiek

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Deadpool Epic Collection

By Greg Capullo, Mark Pacella, Rob Liefeld, Joe Madureira, Pat Olliffe

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Untold Tales of Spider Man

By Tom DeFalco, G. L. Lawrence, Pat Olliffe, Kurt Busiek, Roger Stern

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Spider-Girl: The Complete Collection Vol. 4

By Sean McKeever

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The return of the Soldiers of the Serpent! Spider-Girl has battled them before and come out ahead. But this time, the group has united behind an enigmatic, powerful leader - and May Parker's spider...

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.