Mariner Books has recently re-released the Philip K. Dick canon in attractive new paperback editions. The new editions also coincide with The Exegesis of Philip K. Dick, a collection of notes and writings that defies classification.
Novelist Jonathan Lethem wrote of The Exegesis, "A great and calamitous sequence of arguments with the universe: poignant, terrifying, ludicrous, and brilliant. 'The Exegesis' is the sort of book associated with legends and madmen, but Dick wasn't a legend and he wasn't mad. He lived among us, and was a genius."