I have a book by Alan Fletcher called 'The Art of thinking Sideways'. It doesn't reference design in great details - it's just a massive reference book of creativity you can dip into every now and again.
I've also seen a film called 'Beautiful Losers' which is very inspiring. It's speaks to some amazing artists from LA and the surrounding area about their process and hand-made ethics.
They used to rave about that book at Uni Alan Fletcher, could never get my hands on it as was always loaned out, will buy and see what all the fuss is about.
I have just purchased how good you want to be from Amazon, Â£2.50 with postage included.