Rob Renzetti Books

Ducktales Solving Mysteries and Rewriting History

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The MLaaTR Sketchbook

By Eric Homan, Rob Renzetti, Fred Seibert, Alex Kirwan

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Esrarengiz Kasaba Dipper ve Mabel in Gizem Rehberi Ile Araliksiz Eglence

By Rob Renzetti

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The Horrible Bag of Terrible Things 1

By Rob Renzetti

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From the creator of My Life As a Teenage Robot comes a middle-grade horror story about a horrible bag, the spine-chilling world hidden within it, and a terrifying adventure into the world of GrahBh...

The Horrible Bag of Terrible Things 1

By Rob Renzetti

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Onward: Quests of Yore

By Rob Renzetti

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Gravity Falls

By Rob Renzetti, Andy Gonsalves, Alex Hirsch, Stephanie Ramirez

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Gravity Falls: Dipper's and Mabel's Guide to Mystery and Nonstop Fun!

By Rob Renzetti

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Gravity Falls: Dipper's and Mabel's Guide to Mystery and Nonstop Fun!

By Rob Renzetti Shane Houghton Illustrated By Stephanie Ramirez

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Want to know the best way to thwart the ghost that haunts your local convenience store? Or how to crack a top secret code? Find out in this jam-packed guide featuring tips, activities, and the show...

Gravity Falls: Journal 3

By Alex Hirsch

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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.