Check out this book about Cy Twombly (full disclosure: one of Bonnie's favorite artists). I discovered him in the museums of Europe in the early 80s and my interest in contemporary art did a complete 180. I became obsessed, even to the point of trying to meet him in Lexington, VA when I passed through that town. Never happened, much to my great disappointment. This looks to be a fascinating read.
Click here for a NY Times article about the book.