Hal Johnson Books

Immortal Lycanthropes

By Hal Johnson

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Fearsome creatures of the lumberwoods

By Hal Johnson

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Meet the fearsome creatures of the lumberwoods! The Hodag, like a spinybacked bull-horned rhinoceros packing 3,000 pounds of carnivorous fury. The Snoligoster, the reptilian beast that feeds on the...

Fearsome Creatures of the Lumberwoods 20 Chilling Tales from the Wilderness

By Hal Johnson

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Bodybreak Keep Fit and Have Fun

By Hal Johnson

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Body Break Fitness Walking Program

By Hal Johnson, Joanne McLeod

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Tripping Points

By Hal Johnson, Kurt Glassman

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Fearsome Creatures of the Lumberwoods 20 Chilling Tales from the Wilderness

By Hal Johnson

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Immortal lycanthropes

By Hal Johnson

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Horribly disfigured thirteen-year-old Myron Horowitz discovers that he is the first immortal lycanthrope, a were-mammal, born since time began, that can switch from a human to an animal.

Fearsome Creatures of the Lumberwoods 6 Copy Counter Display

By Hal Johnson, Tom Mead

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Apprentice Academy Knights

By Hal Johnson, Cathrin Peterslund

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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.