Jarrett J. Krosoczka Books

Annie Was Warned

By Jarrett J. Krosoczka, Jarrett Krosoczka

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Disregarding warnings about the creepy mansion outside of town, Annie bravely goes to investigate on Halloween night and gets a big surprise.

Max for President

By Jarrett J. Krosoczka, Jarrett Krosoczka

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Max and Kelly both want to win the election for class president, but when one of them loses, the winner finds a way to make the loser feel better.

Punk Farm

By Jarrett J. Krosoczka, Jarrett Krosoczka

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At the end of the day, while Farmer Joe gets ready for bed, his animals tune their instruments to perform in a big concert as a rock band called Punk Farm.

Hey, Kiddo: A Graphic Novel

By Jarrett J. Krosoczka

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The powerful, unforgettable graphic memoir from Jarrett Krosoczka, about growing up with a drug-addicted mother, a missing father, and two unforgettably opinionated grandparents.In kindergarte...

Comics Squad 3: Detention!

By Jarrett J. Krosoczka, Ben Hatke, Jennifer L. Holm, Matthew Holm, Victoria Jamieson

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A comics collection from some of the biggest stars in graphic novels, including Jennifer L. Holm and Matthew Holm, Jarrett J. Krosoczka, and Victoria Jamieson! Calling all kidz! Do you like comic...

Lunch Lady And The League Of Librarians

By Jarrett J. Krosoczka

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Lunch Lady And The Summer Camp Shakedown Turtleback School Library Binding Edition

By Jarrett J. Krosoczka

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Bubble Bath Pirates

By Jarrett J. Krosoczka, Jarrett Krosoczka

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When pirate mommy announces bath time, it is yo ho ho and to the bath we go for her little pirates.

Giddy Up, Cowgirl

By Jarrett J. Krosoczka

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Sunshine

By Jarrett J. Krosoczka

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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.