Thomas Macri Books

World of Reading Spider Man Spidey s New Costume

By Disney Book Group

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World of Reading Iron Man 3: Iron Man Fights Back

By DBG Illustrated By DBG

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Iron Man is having a bad day, and it's all because of the Mandarin! When his armor gets damaged in a battle with the villain, Tony must find a way to fix the suit and fight back!

World of Reading Wolverine: The Story of Wolverine

By DBG Illustrated By DBG

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Discover how Logan became the X-Man known as Wolverine, why he is the best at what he does, and more in this illustrated early reader!

World of Reading the Story of the X Men Level 2

By Thomas Macri, Pat Olliffe, Disney Book Group Staff

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World of Reading the Story of the X Men

By Thomas Macri, Pat Olliffe

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World of Reading Wolverine: This is Wolverine

By DBG Illustrated By DBG

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In this illustrated early reader, meet Wolverine and find out what makes him Marvel's most popular X-Man!

World of Reading X Men Days of Future Past

By Thomas Macri, Disney Book Group Staff

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Story of the X Men

By Thomas Macri, Pat Olliffe, Disney Book Group Staff

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World of Reading X Men the Story of the X Men

By Thomas Macri, Pat Olliffe

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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.