A thoroughly enjoyable yet careful mathematical perspective of the underlying concepts and many applications of modern signal analysis."" - Les Atlas, University of Washington""Osgood leads his readers from the basics to the more sophisticated parts of applicable Fourier analysis with a lively style, a light touch on the technicalities, and an eye toward communications engineering. This book should be a great resource for students of mathematics, physics, and engineering alike."" - Gerald B. Folland, University of Washington""Fourier analysis with a swing in its step."" - Tom Korner, University of Cambridge