Nachie Castro Books

The tangled webs of Spider Man

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When typical teenager Peter Parker is accidentally bitten by a radioactive spider, he develops spider-like super powers, and uses them to protect the people of New York City.

Venom

By Nachie Castro

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When the evil scientist Norman Osborne gets a sample of Spider-Man's DNA, he uses it to create a supercharged life form: Venom! When Harry Osborn's throws a house party for his friends, Venom decid...

Ultimate Spider Man 3 Doomed

By Nachie Castro

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Disney Infinity infinite possibilities

By Nachie Castro

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"Enter the limitless world of Disney Infinity with this complete companion book! Learn more about your favorite Disney characters featured in the game, explore their worlds included in the Play Set...

Galactus problem a

By N A

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The man in the ant hill

By Nachie Castro

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"Dr. Hank Pym is the first scientist to study vibranium, a rare metal from the nation of Wakanda. He realizes that power can come from the control of vibranium-- and the villain Klaw does, too! Now...

Spider Man. Venom

By Marvel, Editorial Planeta S. A.

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Spider Man. El terrible doctor Doom

By Marvel, Editorial Planeta S. A.

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The amazing Spider Man

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Beware the Lizard

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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.