David L. Robbins Books

Last Citadel

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One nation taking a desperate gamble of war.Another fighting for survival.Two armies locked in a bloody cataclysm that will decide history. . .David L. Robbins has won widespread acclaim for his po...

The assassins gallery

By David. L. Robbins

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The Betrayal Game

By David L. Robbins

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History is just an assassin's bullet away…. In 1961 Professor Mikhal Lammeck, a specialist in the history and weaponry of assassins, has come to Havana. In Fidel Castro, he believes the world is wi...

Liberation Road

By Robbins David L., David L. Robbins

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Scorched Earth

By David L. Robbins, Robbins David L.

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Last Citadel: A Novel of the Battle of Kursk

By David L. Robbins, Robbins David L.

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The assassins gallery

By Robbins David L.

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New Year's Eve, 1945. The assassin steps out of the Atlantic Ocean in the middle of a raging nor'easter. Cool and efficient, she's a weapon of war superbly trained in the ancient arts of subterfuge...

The Betrayal Game

By David L. Robbins

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Clocks

By David L. Robbins

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Suffolk University MA Campus History Series

By Ph.D. David L. Robbins

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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.