For a change, the film is better,
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This review is from: Being There (Black Swan) (Paperback)
Unfortunately, the writer didn't seem to take his time finishing and polishing his story, which is full of potential and very interesting in places. Fortunately, Kosinski wrote the screenplay, elaborating on ideas that were only nascent in the book. Worth a read, but the film (starring Peter Sellers!) is much better and more complete.