Deke Slayton was involved in the NASA space program from the late 1950s until the early 1980s, so this biography covers a lot of ground: Mercury, Gemini, Apollo, Skylab and the Apollo-Soyuz Test Project, when Slayton finally flew in space himself after years of selecting the crews.
The wide scope of the book necessarily means only brief descriptions of some missions, especially as the NASA chapters are sandwiched by descriptions of his early life and of his post-program years. Note that there are no photographs or illustrations at all in this book. Look elsewhere, though, and you'll often see Deke lurking in photos of Mission Control.
Although co-authored by a journalist, the book is written in the first person and, as such, succeeds in getting you inside Slayton's no-nonsense mindset. The simple language helps the reader understand some complicated concepts - not least his famous astronaut selection sequence.
Deke is mentioned in almost all the astronaut biographies, almost always in favourable terms, so it is very interesting to read his version of events, albeit not always returning the compliments.
The final pages are sad in that he clearly knew his days were numbered as he committed his memories to tape with co-author Cassutt. Shame. A great and much-missed character, well portrayed in this interesting read.