Vallee Jacques, Aubeck Chris. Wonders in the Sky. Unexplained Aerial Objects from Antiquity to Modern Times

New York, Penguin, 2009.It's a collection of historical accounts of unexplained objects in the sky. Here the authors are not trying to explain the phenomena but they are trying to look at it via time line of human history.
The co-author, Jacques Valle, a French computer scientist, was the inspiration for the character Lacombe played by Francois Truffault in "Close Encounters of the Third Kind".