I read his book, "the creative act" and he comes off pretty arrogant. One of the chapters actually opens with him saying, "I AM art" and how fortunate the reader was that he took time to impart his creative knowledge into a book.

He's a talented artist and producer, no doubt, but the book was very pompous about his creative philosophy and felt like he'd just been surrounded by yes-men and believing his own hype for the past 20 years. He considers himself a modern Zen master/ Jedi of the new millennium and writes his own koans, lots of name-dropping about his model wife and their rich neighbors in Malibu, writing his own fortune cookie phrases etc.

Also the book didn't have much actionable advice on how to actually use creativity in your own life, it was more about how awesome Rick Ruben thinks he is.

All in all I can't recommend.