Nathan Walpow Books

The Cactus Club Killings Joe Portugal Mysteries

By Nathan Walpow

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Death of an orchid lover

By Nathan Walpow

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One last hit

By Nathan Walpow

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In a city of fast cars and movie stars, these folks are crazy about cacti. Until a killer joins the club . . . Joe Portugal likes people. But he likes plants better. That's why the former theater a...

The Cactus Club Killings

By Nathan Walpow

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The Manipulated

By Nathan Walpow

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A deadly dozen

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Logan s Young Guns

By Jeroen Ten Berge, Nathan Walpow

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Death of an Orchid Lover

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Nature. Nurture. Murder.L.A. actor Joe Portugal just wants to keep the mealybugs off his cacti, give a little boost to his love life, and maybe make a few commercials along the way. And with a smal...

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.