Douglas W. Smith Books

Simulators
Simulators

By Norman F. Smith

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Discusses the invention and operation of simulators, how they are used to train people for responsible positions in aviation, transportation, the military, and spaceflight, and their possible use i...

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Schizophrenia
Schizophrenia

By Smith Douglas W.

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Describes the nature, causes, and treatment of this common type of mental illness.

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Business law
Business law

By Robert G. Lawson

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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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