Excellent introduction treats 3 major analysis of channel models and proof of coding theorems; study of specific coding systems; and study of statistical properties of information sources. Appendix summarizes Hilbert space background and results from the theory of stochastic processes. Advanced undergraduate to graduate level. Bibliography.
Though dated, I thought this was an excellent introduction to information/communication theory. The language was simple and the proofs were straight-forward. I gained an appreciation for information quantification metrics, noise contributions, channel capacitance and overall statistical properties of high and low SNR channels.