Geoffrey O Brien Books

The Times Square Story

By Geoffrey O Brien

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Hardboiled America

By Geoffrey O Brien

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Browser's Ecstasy

By Geoffrey O Brien

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This is a prose poem about reading--a playful, epigrammatic nocturne upon the dream-state one falls into when lost in a book, and the uncanny, trancelike pleasure of making silent marks on paper ut...

Floating City

By Geoffrey O Brien

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Crime Novels of the 1960s

By Geoffrey O Brien

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Library of America presents a deluxe edition of unforgettable crime thrillers of the 1960sHere in two volumes are 9 timeless novels, including 4 lost classics now restored to printIn the 1960s a nu...

Stolen Glimpses, Captive Shadows

By Geoffrey O Brien

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"We watch what is moving fast from a platform that is also moving fast," writes Geoffrey O'Brien in the beginning of Stolen Glimpses, Captive Shadows. This collection—gathering the best of a...

Arabian Nights of 1934

By Geoffrey O Brien

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A genre-bending novel of 1001 nights of no-holds-barred, pre-code American movies distilled into a single fevered dreamworld.Arabian Nights of 1934 is a journey through the fevered dreamworld embod...

Arabian Nights of 1934

By Geoffrey O Brien

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The browser's ecstasy

By Geoffrey O Brien

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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.