I thoroughly recommend my Father and Other Stories by Gary Imlach. Won the Sports Book of the Year award. Beautifully written book about the author's quest to find out more about his father, Stewart Imlach, who played for a number of Scottish and English clubs in the 1950s/60s. Would bring a tear to a glass eye, that one...
I don't generally rate most football autobiographies. Most are ghost-written to within an inch of their lives (e.g. Gazza's and Fowler's) but there are the occasional diamonds amongst the shit (e.g Cascarino's and Quinn's). General dearth of good City biogs; wasn't that impressed with Bell's, Summerbee's and Doyle's, although Tony Book's was okay. But if it's City history that floats your boat, you can't go wrong with anything by the prolific Gary James.
And, whilst I think he's a fantastic broadcaster, steer clear of Ian Cheeseman's latest. I was really, really disappointed with it. Excess waffling and countless spelling/punctuation mistakes did my head in. Slap on the wrists to his publishers for not editing it properly...