I don’t know how to rate a book of diary entries that we don’t know if they were even meant to be published, and thus I felt like I was intruding on something private. Like most memoirs I will try and rate on the readability not the story. 

This was literally a listing of diary entries. Often making not much sense or purely mentioning flights. 

There were some lovely little moments of Alan’s humour but really other than that it was boring. 

I wouldn’t recommend reading as it really was difficult to get through. A biography with references and excerpts from the diary would have been a much better use of the source material.