Attractive set of twenty hardcover books comprising NASA mission reports published by Apogee Books, with missions and programs including: Freedom 7, Friendship 7, Sigma 7, Gemini 6, Gemini 7, Apollo 7, Apollo 8, Apollo 9, Apollo 10, Apollo 11 (three volumes), Apollo 12, Apollo 13, Apollo 14, Apollo 15, Apollo 16, Apollo 17, X-15, and Space Shuttle: STS-1 to STS-5. In overall fine condition.