John Alfred Williams Books

One for New York

By John Alfred Williams

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Night Song

By John Alfred Williams

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The Junior Bachelor Society

By John Alfred Williams

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Sons of darkness, sons of light

By John Alfred Williams

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This novel by one of the most significant African American writers of the twentieth century reflects the author's apocalyptic vision of black revolutionary impulses and reactionary white conspiraci...

Captain Blackman

By John Alfred Williams

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"John A. Williams is exhaustive and accurate in his historical research of the significant role played by African Americans in the military. Captain Blackman is a U.S. soldier in Vietnam who become...

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.