Douglas Keister Books

Bungalow Basics

By Douglas Keister, Paul Duchscherer

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Going out in style

By Douglas Keister

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Going Out in Style: The Architecture of Eternity provides an entertaining and fascinating look at some of the most ostentatious and creative architecture in America. Whether Classical Revival or Ro...

Fernando's gift

By Douglas Keister

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One day young Fernando, who lives in the rain forest of Costa Rica with his family, goes with his friend Carmina to look for her favorite climbing tree only to find it cut down.

Vintage Bungalow Postcards Vintage Postcard

By Douglas Keister

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Fernando s Gift

By Douglas Keister

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Driftwood Whimsy

By Douglas Keister

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Black rock

By Douglas Keister

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Teardrops and tiny trailers

By Douglas Keister

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To grandmother s house

By Douglas Keister

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Forever Dixie

By Douglas Keister

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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.