Audrey Niffenegger Books

"The Night Bookmobile tells the story of a wistful woman who one night encounters a mysterious disappearing library on wheels that contains every book she has ever read. Seeing her history and most...

The Time Traveler s Wife

By Audrey Niffenegger

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Her fearful symmetry

By Audrey Niffenegger

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Identical twins Julia and Valentina Poole are normal American teenagers, and have no great interest in anything outside their home - until an aunt, whom they didn't know existed, dies and leaves th...

Her Fearful Symmetry

By Audrey Niffenegger

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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.