An insight into NASA's Gemini spacecraft, the precursor to Apollo and the key to the Moon NASA's Gemini space flight programme followed on from the pioneering Mercury missions which put the first US astronauts into space.
W. David Woods has studied the American space programme for 20 years and curates the Apollo Flight Journal website, hosted by NASA. He wrote How Apollo Flew to the Moon, an acclaimed book on the techniques and technologies of the Apollo programme. He co-authored the Haynes Lunar Rover Manual. David M. Harland has written extensively about space and astronautics with two-dozen books to his name. These include the highly regarded Exploring the Moon: The Apollo Expeditions and Apollo 11: The First Men on the Moon. He also authored How NASA Learned to Fly in Space: An Exciting Account of the Gemini Missions.