Gary D. Schmidt Books

What came from the stars

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In a desperate attempt for survival, a peaceful civilization on a faraway planet besieged by a dark lord sends its most precious gift across the cosmos into the lunchbox of Tommy Pepper, sixth grad...

Martin de Porres

By Gary D. Schmidt

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The story of Saint Martín de Porres--an endearing tale of perseverance, faith, and triumph over racial and economic prejudice.

Wednesday Wars

By Gary D. Schmidt

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Lizzie Bright and the Buckminster Boy

By Gary D. Schmidt

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Trouble

By Gary D. Schmidt

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Pilgrim s progress

By Gary D. Schmidt

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The pilgrim Christian undertakes the dangerous journey to the Celestial City, experiencing physical and spiritual obstacles along the way.

Acceptable words

By Gary D. Schmidt, Elizabeth Stickney

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Okay for Now

By Gary D. Schmidt

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Straw into Gold

By Gary D. Schmidt

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Wednesday Wars

By Gary D. Schmidt

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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.