General Theory -- Linear and Nonlinear Response Theory with Applications -- Conductivity via Nonequilibrium Statistical Physics -- Aspects of Linear and Nonlinear Electronic Conduction in Dissipative Media -- On the Electronic Transport in Polar Solids -- Theory and Application of Inverse Transport Coefficients -- Metals and Semiconductors -- Interacting Electron Gas in Metals -- Effects of Correlations on the Conductivity of Electron-Hole Plasmas -- Aspects of Transport in Liquid Metals -- Structural Effects on Superconductivity -- Classical Transport in Small-Gap Semiconductors -- Amorphous Semiconductors -- Solved and Unsolved Problems for Non-Crystalline Materials -- Theory of Hopping Conductivity in Disordered Semiconductors -- Hopping Transport in High Electric Fields -- The Formation and Motion of Small Polarons -- Electronic Properties of Amorphous Semiconductors -- Seminars -- Functional Integrals -- Some Recent Findings in Noise Theory and their Implications for Transport Processes -- Low Frequency Fluctuations in Electronic Transport Phenomena -- Electron-Hole Liquid Condensation in Semiconductors -- Thermodynamic and Transport Properties in the Hubbard Model -- Optical Determination of Hot Carrier Distribution Functions -- Special Seminar -- Softons, Softarons and Bisoftarons in Amorphous Solids.