William J. Coughlin Books

Brief Calculus
Brief Calculus

By William J. Coughlin

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Shadow of a doubt
Shadow of a doubt

By William J. Coughlin

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Death Penalty: A Novel
In The Presence of Enemies
The Stalking Man
The Stalking Man

By William J. Coughlin

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Proof of Intent: A Charley Sloan Courtroom Thriller
Proof of Intent: A Charley Sloan Courtroom Thriller

By Walter Sorrells, William J. Coughlin

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A best-selling novelist is accused of the brutal bludgeoning of his wife.

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Death Penalty: A Novel
The dividend was death.
The Destruction Committee
Her honor.
Her honor.

By William J. Coughlin

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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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