Hey, Audrey Hepburn would have been 80 today! There are scores of books about Hepburn, who remains as much a style icon now as when she made her big-screen debut at 24.
Two of my fave Hepburn books are:
The Audrey Hepburn Treasures (Atria) absolutely fantastic collection of photos, facsimiles of telegrams and scripts, and lots of biographical info.
Charmed by Audrey: Life on the Set of Sabrina (Insight Editions), a collection of 
Life photographer Mark Shaw’s “lost” photographs.
Meanwhile, must watch something in her honor. Ah, Charade—love the Mancini score, those wild opening credits, and the combination of spoof and thriller. Where’s the popcorn?
I adore Audrey Hepburn but have never read any books about her. I need to remedy that apparently.