Bakker, R. T. 1986. The Dinosaur Heresies. He was one of the first to portray dinosaurs as quick and active rather than lethargic and slow. He is sometimes criticized for having an overactive imagination, but come on-give the guy a break. Powell, J. L. 1998.
Night Comes to the Cretaceous.
Horner, J. and D. Lessem. The Complete T . rex. Simon and Schuster. Weishampel, D., P. Dodson, and H. Osmolska. Not extremely exciting reading, though.