Three dollars and fifty cents worth of science

Here is what I picked up at the library book sale today:

The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics (hc) by Leonard Susskind - $1.oo

Nothingness: The Science of Empty Space (hc) by Henning Genz - $1.00

Gorgon: Paleontology, Obsession, and the Greatest Catastrophe in Earth's History (hc) by Peter Ward - $1.00

Pale Blue Dot: A Vision of the Human Future in Space (pb) by Carl Sagan - $0.50