The Selected Letters of Philip K. Dick - 6 Volumes

• The Selected Letters of Philip K. Dick, 1938-1971, Underwood Books (1996), hard cover
• The Selected Letters of Philip K. Dick, 1972-1973, Paul William (editor), Underwood Books (1994), hard cover
• The Selected Letters of Philip K. Dick, 1973-1974 , Underwood Books (1991)
• The Selected Letters of Philip K. Dick 1975-1976, Don Herron (Editor), Underwood Books (1993), hard cover
• Selected Letters of Philip K. Dick, 1977-1979, Paul William (Editor), Underwood Books (1993), hard cover
• The Selected Letters of Philip K. Dick, 1980-1982, Underwood Books (2006), hard cover