Harry Knowles Books

Ain t it cool

By Harry Knowles, Mark Ebner, Paul Cullum

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Presents a behind-the-scenes glimpse into the realm of Hollywood, exposing guarded secrets about scripts, casting, production, test screenings, and the release of films.

Ain t It Cool

By Harry Knowles, Mark Ebner, Quentin Tarantino, Paul Cullum

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One Big Union: A History of the Australian Workers Union 1886-1994

By Mark Hearn, Harry Knowles

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One Big Union

By Mark Hearn, Harry Knowles

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The Australian Workers Union (AWU), formed in 1886, has been one of the most influential unions in Australia's political and industrial history. From its beginnings as a sheep shearers union, it be...

Ain t It Cool

By Harry Knowles

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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.