https://www.construction-physics.com/p/building-apollo
Enthusiasm for the Apollo program tends to be focused on the astronauts who piloted the spacecraft, and on the NASA mission control staff that managed the flights from the ground. Comparatively less focus is placed on the actual construction of the Apollo spacecraft and the rockets that put them into orbit. Everyone knows who Neil Armstrong is, but almost no one knows who built the Eagle lander that carried him to the lunar surface (it was Grumman Aerospace). In fictional treatments like the movie First Man, the rocket is simply there, ready and waiting for the astronauts to take their historic flight.
But the astronauts, and NASA, were just the tip of an enormous iceberg of industrial infrastructure, made up of 400,000 workers and 20,000 individual contractors that designed and built the various rockets and spacecraft of the Apollo program.
Angle of Attack: Harrison Storms and the Race to the Moon, by Mike Gray, is a book about one of these contractors, North American Aviation, and the man, Harrison Storms, in charge of the company’s Apollo efforts. It tells the story of what it took to get the rocket from design sketches to the launchpad, the blood and sweat required to build a spacecraft capable of traveling hundreds of thousands of miles through the vacuum of space, landing astronauts on the moon, and returning them safely to earth.