Ellen Ullman Books

By blood

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"San Francisco in the 1970s. Free love has given way to radical feminism, psychedelic ecstasy to hard-edged gloom. The Zodiac Killer stalks the streets. A disgraced professor takes an office in a d...

Close to the machine

By Ellen Ullman

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The bug

By Ellen Ullman

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Close to the Machine

By Ellen Ullman, Anna Wiener

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By Blood

By Ellen Ullman

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Bug

By Ellen Ullman

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Close to the Machine

By Ellen Ullman

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By Blood

By Ellen Ullman

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By Blood

By Ellen Ullman

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Close to the Machine

By Ellen Ullman

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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.