I usually avoid books published posthumous, I'm always afraid the author had good reason for not publishing the work. I'm glad I made an exception because it's a really lovely book and there was one line in particular that struck me. It's in the passage of Turncoat when he's describing Monty Python era humor, or the way that humor used to be before all us jug-heads mucked it up with inaneness.
"Comedy was a medium in which extremely intelligent people could express things that simply couldn't be expressed any other way."
Simple, true, perceptive and leaves you with a smile. Perfectly Douglas Adams.