Robert Ludlum Books

The Paris Option

By Robert Ludlum

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The Janson Directive

By Robert Ludlum

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The Tristan Betrayal

By Robert Ludlum

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The Ambler Warning: A Novel

By Robert Ludlum

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The Bancroft Strategy: A Novel

By Robert Ludlum

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Maverick U.S. intelligence agent Todd Belknap, known as the Hound for his superior ability to track his quarry, heads to Lebanon to try to find a fellow agent who has been kidnapped. Meanwhile, And...

Robert Ludlum's The Moscow Vector: A Covert-One Novel

By Patrick Larkin, Robert Ludlum

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Contacted by Dr. Valentin Petrenko, a Russian specialist in rare diseases, about a mysterious cluster of deaths in Moscow, American Dr. Fiona Devin becomes the target of the assassins who kill Petr...

Robert Ludlum's the Lazarus Vendetta

By Patrick Larkin

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For the past three decades Robert Ludlum's bestselling novels have been enjoyed by hundreds of millions of readers worldwide and have set the standard against which all other thrillers are measured...

The Osterman Weekend

By Robert Ludlum

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The Rhinemann Exchange

By Robert Ludlum

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The Road to Gandolfo

By Robert Ludlum

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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.