Sarah Langan Books

The Keeper

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Some believe Bedford, Maine, is cursed. Susan Marley, once the local beauty has turned into the local whore. Now silently prowling the streets, she watches from the shadows, waiting for something....

Built on the Upper West Side, the elegant Breviary claims a regal history. But despite 14B's astonishingly low rental price, the recent tragedy within its walls has frightened away all potential te...

The Keeper

By Sarah Langan

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Virus

By Sarah Langan

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Unspeakable horror

By Vince A. Liaguno, Chad Helder

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Good Neighbors

By Sarah Langan

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Good Neighbours

By Langan Sarah

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Good Neighbors

By Sarah Langan

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Good Neighbors

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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.