Forever Young: A Life of Adventure in Air and SpaceAutobiography of astronaut John Young.
He was an astronaut for over 40 years, flew twice each in Gemini, Apollo and the Shuttle.
A very interesting book but a tough read unless you don't mind getting into the weeds on many mundane details of aircraft/spacecraft. Young had an amazing memory for detail or kept meticulous records to refer back to. A few minor errors along the way too though.
Much of the last quarter of the book is a litany of issues Young knew about with Shuttle and NASA's refusal to correct them, even procedural issues that would have cost next to nothing.