Michael J. Pellowski Books

Monster jokes

By Michael J. Pellowski

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Football's wackiest moments

By Michael J. Pellowski

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Describes amusing anecdotes and crazy quotes involving some well-known NFL coaches, quarterbacks, defensive players, and runners and receivers.

Play and Discover Animals Play and Discover

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Bipquiz Sky Earth Bipquiz Series

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What's it like to be a-- police officer

By Michael J. Pellowski

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Describes how police officers are selected and trained and examines the wide variety of tasks they perform as they protect the public and fight crime.

What's it like to be a-- police officer

By Michael J. Pellowski

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Describes how police officers are selected and trained and examines the wide variety of tasks they perform as they protect the public and fight crime.

102 wild & wacky jokes

By Michael J. Pellowski

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102 wacky monster jokes

By Michael J. Pellowski

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A collection of riddles about monsters, including "What do monsters like on their mashed potatoes? Grave-y."

Mixed-up magic

By Michael J. Pellowski

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Waldo the wizard discovers some wacky changes in his powers after his clumsy assistant drops Waldo's magic wand.

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.