P J Petersen Books

Corky and the Brothers Cool

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Thirteen-year-old Tim has never known anyone like Corky, a boy from the city who has just moved to Tim's small town in the California wine country, but Corky's practical jokes and pranks lead Tim i...

Going for the big one

By P. J. Petersen

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Left penniless by their latest stepmother while their father is looking for work in Alaska, three youngsters start out on what becomes a dangerous trek over the mountains to a small town where they...

Good-bye to good ol' Charlie

By P. J. Petersen

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Tired of being viewed by everyone as boring, reliable Good Ol' Charlie, a sixteen-year-old boy sees his family's move to a new town as a chance to change his image.

The freshman detective blues

By P. J. Petersen

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Eddie, age fourteen, and Jack, age seventeen, find a skeleton weighted down in Muir Lake, and Jack thinks it just might be his father who's been missing for nine years.

Rob&Sara.com

By P. J. Petersen, Ivy Ruckman

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Rob, who lives at a school for troubled teenagers, and Sara, the sixteen-year-old daughter of an army colonel, meet in a poetry chat-room and develop a close relationship via email.

Rob&sara.com

By P. J. Petersen

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Rob, who lives at a school for troubled teenagers, and Sara, the sixteen-year-old daughter of an army colonel, meet in a poetry chat-room and develop a close relationship via email.

My Worst Friend

By P J Petersen

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The boll weevil express

By P. J. Petersen

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A bored northern California farm boy and a brother and sister from an orphanage decide to run away to Idaho but find themselves down and out in San Francisco.

Nobody else can walk it for you

By P. J. Petersen

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A group of young backpackers led by eighteen-year-old Laura must outwit three motorcyclists who terrorize them in a wilderness area.

Would you settle for improbable?

By P. J. Petersen

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The arrival of Arnold, who has spent much of his life in juvenile detention centers, has a great impact on 14-year-old Mike and his 9th-grade classmates.

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.