Doug Cushman Books

The Mystery of King Karfu

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The great detective Seymour Sleuth and his assistant Muggs journey to Egypt to search for a missing stone chicken, an important clue to the location of the Lost Treasure of King Karfu.

Aunt Eater's mystery Halloween

By Doug Cushman

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Aunt Eater the anteater finds plenty of mysteries to solve when she attends a Halloween costume party.

Inspector Hopper

By Doug Cushman

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Inspector Hopper and his perpetually hungry assistant McBugg solve three mysteries for their insect friends.

Dirk Bones and the mystery of the haunted house

By Doug Cushman

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"Daily Tombs" newspaper reporter Dirk Bones, who also happens to be a skeleton, investigates when a family of ghosts fears that they are being haunted.

Dirk Bones and the mystery of the haunted house

By Doug Cushman

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"Daily Tombs" newspaper reporter Dirk Bones, who also happens to be a skeleton, investigates when a family of ghosts fears that they are being haunted.

Aunt Eater's Mystery Halloween

By Doug Cushman

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Because his clumsiness and fear of heights makes it impossible for him to be a trapeze artist like the rest of his famous family, Mickey is unhappy until his circus friends show him that he has a u...

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.