Jeff Hamill Books

Walt Disney's Uncle Scrooge.

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Four new adventures featuring Uncle Scrooge McDuck and his nephews.

Walt Disney s Comics And Stories 693 Walt Disney s Comics and Stories Graphic Novels

By Jeff Hamill, Michael T. Gilbert, Daan Jippes, Francisco Rodriguez Peinado, Noel Van Horn, Paul Murry, Carl Barks, Cesar Ferioli, John Lustig

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Uncle Scrooge 353 Uncle Scrooge Graphic Novels

By Miquel Pujol, Jeff Hamill, Vicar, Carl Barks

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Four new adventures featuring Uncle Scrooge McDuck and his nephews.

Taking Responsibility Heart Mind and Soul

By Mark Lindstrom, Jeff Hamill, Janice Hamill

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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.