Two Sides of the Moon: Our Story of the Cold War Space Race (2006), is a dual biography of two people whose contribution to the exploration of space has been incomprehensible. Alexei Leonov, the soviet cosmonaut and David Scott, the US astronaut put in words their entire life, struggle and success. The story is unfolded in a unique way where both the authors narrate the incidents in parallel. This is considered as a must read book for all who are interested in space technology. The book gives you the insight of the space program of NASA and the USSR in very great detail, especially the details of USSR programs which are very rarely made public. Some of the scientific and technical details provided takes your breath away and makes you wonder for hours together.