The Bactra Review Statistical
Thermodynamics of Nonequilibrium Processes
See the excellent recent review article by David Ruelle, ``Smooth Dynamics and
New Theoretical Ideas in Nonequilibrium Statistical Mechanics,'' Journal
of Statistical Physics 95 (1999): 393--468, also chao-dyn/9812032. For the
linear regime, Dieter Forster, Hydrodynamic Fluctuations, Broken
Symmetry, and Correlation Functions (Reading, Massachusetts: Benjamin
Cummings, 1975) is still invaluable, and has even been reprinted
(Addison-Wesley, 1994) --- with the original miserable typography.