Duane Johnson Books

The Family Handyman How a House Works

By Duane Johnson

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How a house works

By Duane Johnson

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Caddo Lake

By Duane Johnson

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Berserk Deluxe Volume 2

By Kentaro Miura

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The reigning king of adult fantasy manga is back!Expand your Berserk manga collection with this oversized deluxe edition of volumes 4-6—featuring a leatherette hardcover and 700 pages of acti...

Berserk Deluxe Volume 3

By Kentaro Miura

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The acclaimed adult fantasy manga now in 7x10 deluxe hardcover editions!The hundred-year war between the kingdoms of Midland and Tudor nears an end as the legendary Band of the Hawk mercenaries, le...

Berserk Deluxe Volume 4

By Kentaro Miura Creator Writer Artist

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The acclaimed adult fantasy/horror manga now in 7x10 deluxe hardcover editions!Guts, the feared Black Swordsman, has saved the Band of the Hawk mercenaries from annihilation at the hands of the arm...

Berserk Deluxe Volume 5

By Kentaro Miura Creator Writer Illustrator

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Kentaro Miura's epic adult fantasy/horror series is an international sensation and is now featured in 7x10 deluxe hardcover editions!Griffith, the mutilated leader of the Band of the Hawk mercenari...

Berserk Deluxe Volume 6

By Kentaro Miura Creator Writer Illustrator

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An adult fantasy/horror epic of monumental proportions, Kentaro Miura's Berserk is now offered at its original published size in handsome deluxe hardcover editions each collecting three volumes of...

Berserk Deluxe Volume 7

By Created Written, Illustrated By Kentaro Miura

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Kentaro Miura's legendary adult fantasy/horror manga is now available at its original published size in handsome deluxe hardcover editions, each collecting three volumes of the acclaimed series.Gut...

Berserk Deluxe Volume 8

By Written, Illustrated By Kentaro Miura.

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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.