William McKeen Books

Hunter S. Thompson

By William McKeen

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Mile marker zero

By William McKeen

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Mile marker zero

By William McKeen

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Mile Marker Zero

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True stories of writers and pirates, painters and potheads, guitar pickers and drug merchants in Key West in the 1970s. For Hemingway and Fitzgerald, there was Paris in the twenties. For others, l...

Highway 61

By William McKeen

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Outlaw Journalist

By William McKeen

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Outlaw Journalist

By William McKeen

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Mile Marker Zero

By William McKeen

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Homegrown in Florida

By William McKeen

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An anthology of stories by writers who grew up in Florida.

Everybody Had an Ocean

By William McKeen

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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.