Preface. 1. Hopping conduction in the critical regime approaching the metal-insulator transition (T.G. Castner). 2. Hopping in band tails far from equilibrium (D. Monroe). 3. Non-Ohmic microwave hopping conductivity (Yu.M. Galperin, V.L. Gurevich and D.A. Parshin). 4. Thermal conduction due to hopping processes in amorphous solids (A. Jagannathan, R. Orbach and O. Entin-Wohlman). 5. The hopping thermopower (I.P. Zvyagin). 6. Slow processes in disordered solids (M. Pollak and A. Hunt). 7. Hopping conductivity in the intermediate frequency regime (A.R. Long). 8. Hopping in mesoscopic samples (A.B. Fowler, J.J. Wainer and R.A. Webb). 9. Scattering and interference effects in variable range hopping conduction (B.I. Shklovskii and B.Z. Spivak). 10. Hopping conduction in III-V compounds (R. Mansfield). 11. Hopping conduction in electrically conducting polymers (S. Roth). 12. Hopping conduction in heavily doped semiconductors (A.N. Ionov and I.S. Shlimak). Author index. Subject index. Cumulative index.