John Wayne, The Life and Legend by Scott Eyman
This book was a bit long and dull, so I didn't finish it. It is certainly a thoroughly-researched analysis of Wayne's life and films. I did find the story of his tough journey to the top interesting. He had to overcome an unstable and relatively poor upbringing, shyness and insecurity and a hard apprenticeship in B-grade movies. The part about his affair with Dietrich was also intriguing, but it's only a tiny section of the book.