Review of 'Notes on Digital Communication' (Turin, G. L.; 1969)

been ment ioned and is even more notable since it is combined with a moderate price. Finally, the typographical appearance is attractive. +I little more editorial care could have avoided several easily detectable misprints. In a recent thoughtful editorial in Science,2 Warren Weaver pointed out that the definition of a good teacher depends upon the orientation of the person who forms the definition. The same is true in judging a textbook. Some readers might have preferred more chal lenging problems and a more thought-provoking presentation, or more references and examples about real-life problems. But these are things that any alert and competent instructor can supply, adapt ing them to the level of his class. In my opinion, An introduction to Statistical Communicat ion Theory is a good textbook and a very convenient one from which to teach or learn the basic elements of the field; for this, both teachers and students owe gratitude to Prof. Thomas.