This collection of short essays written ostensibly by the 'Original Seven' NASA astronauts originated in articles in LIFE magazine published at the time of their pioneering Mercury flights. As you'd expect this early in the space race, this book from 1962 is relentlessly upbeat and contains some rather corny and sanitised insights into the domestic and personal virtues of our seven heroes, but it also contains surprisingly large amounts of fascinating and well-explained technical detail about the Mercury spacecraft themselves and the human experience of flying them into space, from Al Shepard and Gus Grissom aboard Redstone rockets through John Glenn and Scott Carpenter aboard their Atlas boosters. In fact, they provide much more thorough and comprehending real-time accounts of their training and flights in these sub-orbital and orbital missions than many later books written with the luxury of hindsight and cynicism, from Tom Wolfe's 'The Right Stuff' onwards. The LIFE journalists really seemed to have done their homework, even if they polished up the god-fearing, family-man images of the astronauts themselves a little too brightly. The sections on the Original Seven's early careers and flight experiences seem to have been a major source for material since recycled endlessly, and not always accurately, in later books, but many of the original stories and observations here were new to me. There's an authenticity and simplicity about these accounts that's quite refreshing, although you have to read between the lines (or read the later books)to guess at the tensions between the seven astronauts and their relationships to the flight controllers and NASA management. Read Christopher Kraft's book for the flight controller's perspective. Curiously, the back cover photo is of a later Gemini mission, not a Mercury flight.