John Grandits Books

Pictures tell stories

By John Grandits

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Seven rules you absolutely must not break if you want to survive the cafeteria

By John Grandits

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Addressing kids' anxiety about unfamiliar situations, this irreverent book lists and explains the rules a kid must follow to survive the perilous world of the school cafeteria. Warnings about the p...

Technically, It's Not My Fault: Concrete Poems

By John Grandits

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Technically, It's Not My Fault: Concrete Poems

By John Grandits

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The travel game

By John Grandits

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To avoid a nap, Tad plays his favorite quiet game with his aunt and together their imaginations take them from their home in Buffalo, New York, to Hong Kong.

Blue lipstick

By John Grandits

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A 15-year-old girl named Jessie voices typical--and not so typical--teenage concerns in this unique, hilarious collection of poems. Her musings about trying out new makeup and hairstyles, playing v...

Blue Lipstick

By John Grandits

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Picture Tell Stories Collections for Young Scholars

By John Grandits

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Seven Rules You Absolutely Must Not Break If You Want to Survive the Cafeteria

By Michael Allen Austin, John Grandits

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Ten Rules You Absolutely Must Not Break If You Want to Survive the School Bus

By Michael Allen Austin, John Grandits

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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.