Alex Thorleifson Books

John Wayne: My Life With the Duke

By Pilar Wayne

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My Life with the Duke

By Pilar Wayne, Alex Thorleifson

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Behind the Candelabra: My Life With Liberace

By Alex Thorleifson, Scott Thorson

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John Wayne

By Pilar Wayne, Alex Thorleifson

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Behind the candelabra

By Scott Thorson

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From the author, Liberace's longtime lover, comes an unusually frank book that tells all: the good, the bad, and the ugly truths about the legendary entertainer who went to outrageous extremes to p...

John Wayne

By Pilar Wayne, Alex Thorleifson

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Ethel Barrymore

By Alex Thorleifson

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An illustrated biography of the famous American actress whose career flourished in the first half of the twentieth century.

Ethel Barrymore

By Alex Thorleifson

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An illustrated biography of the famous American actress whose career flourished in the first half of the twentieth century.

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.