"The most important book since Wittgenstein's Tractatus." — (The late) Alan Watts, Philosopher, author of The Way of Zen (1969)
The above critique is a bit of an overstatement; it's a nice historical read. It smells and feels sixties the whole way through, I like the abundant cross-associations. But, like a lot of prose from the sixties: Is it Art, or is it just LSD?