Douglas Kaine McKelvey Books

The angel knew papa and the dog

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A seven-year-old girl befriends a large stray dog, survives a flood that separates her from her beloved father, and sees an angel.

Locust pocus

By Douglas Kaine McKelvey

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Rhyming verses describe an assortment of insects, including termites, gnats, beetles, bees, grasshoppers, lice, and houseflies.

Wingfeather Tales

By Jennifer Trafton, Andrew Peterson, Douglas Kaine McKelvey, Nathan D. Wilson, Jonathan Rogers

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Return to the world of the Wingfeather Saga (more than one million copies sold!) with Andrew Peterson and his all-star author friends—now featuring new illustrations and the first-ever Wingfeather...

Angel Knew Papa and the Dog

By Douglas McKelvey

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The angel knew papa and the dog

By Douglas Kaine McKelvey

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A seven-year-old girl befriends a large stray dog, survives a flood that separates her from her beloved father, and sees an angel.

The Angel Knew Papa and the Dog

By Douglas Kaine McKelvey, Zach Franzen

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Every Moment Holy

By Fernando Ortega, Douglas Kaine McKelvey, Rebecca K. Reynolds

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Every Moment Holy II Volume II

By Leon Nixon, Pamela Klein, Douglas Kaine McKelvey

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Every Moment Holy II Volume II

By Leon Nixon, Pamela Klein, Douglas Kaine McKelvey

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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.