Roger Cook Books

Dangerous Ground
Dangerous Ground

By Roger Cook

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Dangerous ground
Dangerous ground

By Roger Cook

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Tree of Life
Tree of Life

By Roger Cook

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The Western Maryland Railway
The Western Maryland Railway

By Roger Cook

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"An illustrated history of the railroad, with particular emphasis on the quarter-century from the Western Maryland's Centennial in 1952 to the Chessie System's assumption of the line in the seventi...

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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.

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