TOMMY GREENWALD Books

Been there done that

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An anthology of stories inspired by the real-life school experiences of many of today's celebrated authors includes contributions by such writers as Wendy Mass, Varian Johnson, and Bruce Coville.

My dog is better than your dog

By Tom Greenwald

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From the author of Charlie Joe Jackson's Guide to Not Reading comes a humorous and illustrated new series about a boy whose new dog may or may not be a crimefighting vampire.

It s a doggy dog world

By Tom Greenwald

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Bored by the lack of crime in Quietville lately, Jimmy's vampire dog, Abby, has chewed up his mother's entire shoe collection, and so his parents have insisted in enrolling Abby in obedience traini...

Dog Day After School

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Charlie Joe Jackson s Guide to Summer Vacation

By TOMMY GREENWALD

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Jack Strong takes a stand

By Tom Greenwald

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Tired of being forced to participate in sports and take extra lessons and tutoring to become well-rounded in anticipation of college, middle-schooler Jack Strong stages a sit-in on his couch until...

Katie Friedman gives up texting and lives to tell about it.

By Tom Greenwald

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Charlie Joe Jackson's best friend Katie Friedman is tough, but can she convince her fellow middle schoolers to give up their phones for a week? When a text goes wrong, Katie Friedman learns the har...

Jack Strong takes a stand

By Tom Greenwald

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Tired of being forced to participate in sports and take extra lessons and tutoring to become well-rounded in anticipation of college, middle-schooler Jack Strong stages a sit-in on his couch until...

Charlie Joe Jackson s guide to making money

By Tom Greenwald

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Charlie Joe Jackson is backNand trying desperately to get straight A's in order to avoid going to academic camp for the summer. To do this, he will have to betray his friend, lose the girl of his d...

Charlie Joe Jackson s guide to Planet Girl

By Tom Greenwald

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"Everyone has a girlfriend except Charlie Joe! But he won't be left in the dust. Look out for make-ups, break-ups, and hilarious romance tips as Charlie Joe figures out this crazy little thing call...

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.