Clint Eastwood: A Biography, by Richard Schickel, is the only authorized biography to date. Schickel and Eastwood were friends, and the book is based on extensive exclusive interviews with its subject. No other book is as close to Eastwood's life as he lived it. It only has two drawbacks: 1) it was published in 1996, and therefore has nothing to say about the last 24 years of Eastwood's life and career (the last film covered is
The Bridges of Madison County), and 2) the publisher didn't hire a fact-checker to correct Schickel's imperfect recollections of the plots of Eastwood's movies, and his summaries are riddled with errors. It's still highly recommended. Amazon link:
https://www.amazon.com/Clint-Eastwood-Biography-Richard-Schickel/dp/0679749918/Two more up-to-date works that I would recommend are:
1)
American Rebel: The Life of Clint Eastwood by Marc Elliott (2009), which carries the story through
Changeling:
https://www.amazon.com/American-Rebel-Life-Clint-Eastwood/dp/0307336891/2)
Clint Eastwood : a Biography, by Sara Anson Vaux (2014), which covers through
Hereafter,
J. Edgar and
Jersey Boys:
https://www.amazon.com/Clint-Eastwood-Biography-Greenwood-Biographies/dp/1440829977/If you don't want to commit to buying any of these, you might ask at your local library. If they don't have them, they could probably get them for you via Interlibrary Loan.
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