One of the best recent books about Santos-Dumont’s life and aeronautical exploits, with some marvellous photographs:

Devotees of the Wright Brothers are warned that they may find some of her claims and views to be rather over-the-top!

For a good general discussion of the claims made for Santos-Dumont see-

http://invention.psychology.msstate.edu/i/Santos-Dumont/Santos-Dumont.html