Ian Mackersey. The Wright Brothers: The Remarkable Story of the Aviation Pioneers Who Changed the World. London: TimeWarner Paperbacks, 2004. Somewhat surprisingly, I've never bought any books about the Wrights (apart from Alfred Gollin's No Longer an Island: Britain and the Wright Brothers, 1902-1909, obviously). I still haven't, but thanks to a gift from a colleague (thanks Rich!) I now own one. This takes a biographical approach but looks solidly researched; Mackersley is a New Zealander who has also written biographies of Jean Batten and Charles Kingsford Smith.
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