Lois H. Gresh Books

The hunger games companion

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"For all those who adore Katniss and Peeta, and can't get enough, this companion guide to the wildly popular Hunger Games series is a must-read and a terrific gift--especially with the film version...

The fan s guide to Artemis Fowl

By Lois H. Gresh

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Termination Node

By Lois H. Gresh, Robert Weinberg

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Computers of Star Trek

By Lois H. Gresh, Robert A. Weinberg

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Computers of Star Trek

By Lois H. Gresh, Robert A. Weinberg

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Science of Superheroes

By Lois H. Gresh, Robert Weinberg

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Science of Supervillains

By Lois H. Gresh, Robert Weinberg

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Science of James Bond

By Lois H. Gresh, Robert Weinberg

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Science of Supervillains

By Lois H. Gresh, Robert Weinberg

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The Science of Superheroes

By Lois H. Gresh

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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.