The idea to write this volume arose in May, 1979 on the "Annual Seminar on Sta- tistical Physics" in Lahnwitz near Gustrow, a nice resort place of the Padagogische Hochschule Liselotte Herrmann Gustrow, where most of the authors were present. The participants of this seminar agreed in the general opinion that the transport properties of charged particle systems starting from ionized gases and ending with liquid metals should be interpreted in a unique way. The basic method of such a uni- fied theory which is still in "status nascendi" nowadays, should be the statistical physics of systems...