Ricardo Villagran Books

Star Trek

By Ricardo Villagran, Tom Sutton, Mike W. Barr

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The Chronicles of Conan Volume 34

By Ricardo Villagran, Mike Docherty, Ernie Chan, Roy Thomas, Alfredo Alcala

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Star Trek Comics Classics: Death Before Dishonor

By Peter David

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In the aftermath of the destruction of the Genesis planet — and a Klingon ship — in Star Trek III: The Search for Spock, the Klingons are after Captain Kirk... with a vengeance! And whe...

Star Trek Comics Classics: The Return Of The Worthy

By Peter David Bill Mumy J. Michael Straczynski Howard Weinstein Others

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Captain Kirk has finally escaped the attentions of the Klingons and the Nasgul, but when he discovers a long-thought-dead team of explorers, his problems are only just beginning! Can Kirk and the c...

Deadbeats

By Ricardo Villagran, Richard Howell

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Call of the Wild

By Charles Dixon, Ricardo Villagran, Jack London

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The Call Of The Wild

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Star Trek Classics Volume 5 Who Killed Captain Kirk

By Ricardo Villagran, Gordon Purcell, Peter David, Tom Sutton, Jason Palmer

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Star Trek Classics: The Mirror Universe Saga

By Mike W. Barr Tom Sutton Ricardo Villagran

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Picking up where Star Trek III: The Search for Spock left off, Admiral Kirk and the crew of the U.S.S. Enterprise face off with evil versions of themselves in the fan-favorite Mirror Universe!Admir...

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.