For my money Smith's recent work is the best all-round discussion of his life (although it contains a few technical errors, it also discusses previous works). If you are interested in Mannock as seen by his contemporaries try "Fighter Pilot" by McScotch which gives us information about his career with 40 Sqn. Also "Tiger Squadron" by
Ira Jones which gives details about his time with 74 Squadron. Both are quoted extensively in other works. If you are looking for books try
www.abe.com, I got Smith's book for half-price! As to the Baron's comment about why? well Baron if you don't know by now you are too old to learn, and on totally the wrong web-site!