Otto Penzler Books

Murder for Revenge

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This irresistible collection of original stories was born of a deliciously wicked idea: ask twelve of America's best writers to explore a single subject—people willing, often gleefully so, to kill...

Eight men and eight women—the best writers in and out of the mystery field—render their very own, original take on love gone wrong in this collection of stories. Animosity and affection intermingle...

Dangerous Women

By Otto Penzler

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Murder Is My Racquet

By Otto Penzler

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Murder at the Foul Line

By Otto Penzler

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Murder in the Rough

By Otto Penzler

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Murder at the Racetrack

By Otto Penzler

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The private lives of private eyes, spies, crimefighters & other good guys

By Otto Penzler

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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.