This "bible" of a whole generation of communications engineers was originally published in 1958. The focus is on the statistical theory underlying the study of signals and noises in communications systems, emphasizing techniques as well s results. End of chapter problems are provided.
Look, An Introduction to the Theory of Random Signals and Noise is the best case I've read for letting yourself be a beginner again. Wilbur B. Davenport argues that adults avoid new things because we hate looking bad, and it costs us more fun than we realize. The chapter about a sixty-year-old woman learning to skateboard made me grin and then sign up for a pottery class I'd been avoiding for two years. It circles back to the same point a few too many times. Great for anyone stuck in a rut. Skip it if you want a detailed how-to.
I started An Introduction to the Theory of Random Signals and Noise on a plane and finished it before landing, which is kind of a record for me. Wilbur B. Davenport keeps the pages light and the stakes sneaky, no fluff, no show. It's a snack, not a feast. Perfect for travel, skip if you want something to sink your teeth into.