Stephen Jay Schwartz Books

Beat

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LAPD robbery-homicide detective Hayden Glass has always had trouble controlling his urges. No longer trolling the streets looking for working girls, he has a new obsession--the Internet. Infatuated...

Boulevard

By Stephen Jay Schwartz

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Beat

By Stephen Jay Schwartz

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Boulevard

By Stephen Jay Schwartz

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Haunted by painful childhood events including the early death of his father, LA detective Hayden Glass hides private struggles about his sex addiction while investigating the murder of a politician...

Beat

By Stephen Jay Schwartz

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Boulevard

By Ray Porter, Stephen Jay Schwartz

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Beat

By Ray Porter, Stephen Jay Schwartz

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Hollywood vs. The Author

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Boulevard

By Stephen Jay Schwartz

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Crossing the Line

By Stephen Jay Schwartz

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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.