Marcus Emerson Books

A game of chase

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My name is Chase Cooper, and this is my fourth diary as a 6th grade ninja. A few weeks have breezed by since my last entry, but things don't stay quiet at my school for long. The science fair is co...

Terror at the talent show

By Marcus Emerson

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My name is Chase Cooper, and this is my fifth diary as a 6th grade ninja. The best part about my new ninja lifestyle is that there's never a dull moment ... unfortunately, that's the worst part abo...

Buchanan bandits

By Marcus Emerson

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Chase Cooper here, and this is my sixth diary as a 6th grade ninja. As always, there's trouble brewing in the halls of Buchanan School. A bandit is on the loose who's stealing from innocent student...

Secret agent 6th grader

By Marcus Emerson

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Brody Valentine here, and this is the story of the craziest day of school I've ever had. What started as a normal homeroom ended with me as the school's most wanted kid.

Secret agent 6th grader

By Marcus Emerson

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The name's Brody Valentine and I'm a secret agent, but just barely. You see, this is the story of my first "official" day as an agent with Glitch. Like most noobs, I was assigned the lamest case po...

Diary of a 6th Grade Ninja 2 Pirate Invasion

By Sal Hunter, Noah Child, Marcus Emerson

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Secret agent 6th grader

By Marcus Emerson

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The name's Valentine, Brody Valentine, and I'm back with my fourth case. The sixth graders of Buchanan School are on a trip to the mall to watch our award winning show choir perform in the food cou...

My worst frenemy

By Marcus Emerson

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The name's Chase Cooper, and this is my tenth diary as a 6th grade ninja. If I had a penny for every time trouble came knocking at my door ... I'd have ten pennies. A few days have passed since the...

Middle school ninja

By Marcus Emerson

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My name is Max, and I'm a totally bored middle schooler. My life is so lame that every day has started to feel like the same exact day ... that is, except for today. The school science club dug up...

Recess warriors

By Marcus Emerson

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When imaginations go wild in the schoolyard, anything can happen. Normal kids become world-saving heroes, girls become power-hungry pirates, and zombies take over the school after being infected by...

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.