Robin McKown Books

The image of Puerto Rico : Its history and its people: on the island--on the mainland

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Traces the history of Puerto Rico from its discovery by Columbus to its future as a possible fifty-first state or independent nation.

Mark Twain: Novelist Humorist Satirist Grassroots Historian and Americas Unpaid Goodwill Ambassador at Large

By Robin McKown

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A biography stressing the wide range of literary achievements of the author considered by many to be America's greatest writer.

The Republic of Zaire (formerly the Democratic Republic of the Congo)

By Robin McKown

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A history of the Congo, now called Zaire, which includes discussions on the many tribes, the era of white explorers, and the gaining of independence.

The execution of Maximilian, June 19, 1867

By Robin McKown

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A biography of Maximilian emphasizing the political events leading to his assumption of power in Mexico and eventual execution.

The Opium War in China: 1840-1842

By Robin McKown

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66 p. 22 cm

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.