Gabriella Oldham Books

Old Fashioned Christmas Cards

By Gabriella Oldham

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Old Fashioned All Occasion Postcards

By Gabriella Oldham

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First cut

By Gabriella Oldham

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First cut

By Gabriella Oldham

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Keaton's silent shorts

By Gabriella Oldham

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This study of Buster Keaton's nineteen silent short films shot between 1920 and 1923 provides the first book-length examination of the independent silent short films of one of the acknowledged king...

Keaton's silent shorts

By Gabriella Oldham

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Harry Langdon

By Gabriella Oldham

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Fasuto katto

By Gabriella Oldham

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Old Fashioned Halloween Cards

By Gabriella Oldham

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First Cut

By Gabriella Oldham

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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.