Stephen Roos Books

Aspects of Community Health

By Susan Hattingh, Marie Dreyer, Stephen Roos

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With the prospect of Camp Hit-a-Homer looming before him, eleven-year-old Warren, whose older brother is a super athlete, resorts to desperate measures to hide the fact that he can neither throw no...

The terrible truth

By Stephen Roos

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Between a disastrous attempt to start a club, feuding with a class member, and trying to decide how to treat the new boy in sixth grade, Shirley feels life doesn't hold very much.

My secret admirer

By Stephen Roos

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When she receives a valentine signed "your secret admirer," Claire tries a variety of schemes to discover his identity.

My secret admirer

By Stephen Roos

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When she receives a valentine signed "your secret admirer," Claire tries a variety of schemes to discover his identity.

Confessions of a wayward preppie

By Stephen Roos

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During his freshman year at an exclusive prep school, Cary is caught in a campaign of hatred between his two roommates and faces the temptation to help a friend cheat.

You'll when I'm Gone

By Stephen Roos

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Convinced that he is a rotten kid and disgusted that his father is still taking physical advantage of his mother even though they are now divorced, sixteen-year-old Marcus finds that a vodka bottle...

Twelve-year-old vows revenge!

By Stephen Roos

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Two student newspaper reporters spend the summer trying to get even with each other, and in the process, abuse the right of a free press.

Twelve Year Old

By Stephen Roos

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The Pet Lovers Club love me, love my werewolf

By Stephen Roos

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Bernie befriends a small stray dog who proves to be invaluable around the house and is a hit at the Pet Lovers Club Halloween party.

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.