The real genius of this book is in the organisation of the material. Starting in an almost light- hearted vein (if it's possible to use that term in conjunction with anything written by or about PKD, although one of the revelations in this tome is just how aware Dick was of his reputation and how humourosly he responded to it), the material progresses from shortish, interesting scraps of bio and autobiographical material, to technical pieces on SF and Dick's relationship with it. Heavy philosophical thought- food follows, at which point you start to see the PKD stereotype emerge, finally blossoming into full- blown ramblings of a deeply personal nature which illustrate the complex effect of his breakdown/revelation of 1974.
Much insight into this enormously intelligent man can be gained from this book- compare his comments about Stanislaw Lem here to the established knowledge of his attitude to the Polish master- great revelations spring from almost insignificant remarks. Short of laboriously collecting together all of his published material, a copy of this book will go a long way to de- mystifying the enigmatic Mr. Dick.
The structure of the book perfectly compliments the material within, providing the reader with either an extremely involving point- to- point journey, or a grab- bag of stimulating essays, anecdotes and texts, your call. Illuminating.