Finally done with this now. I must say, the final couple of hours soured my experience a little, what with the wandering round waiting for money to generate just to get the last few books, and the awful first person sections, and even having done all them there were still no Revelations.
Anyway, that’s pretty much all the non-multiplayer achievements done, aside from a few I really can’t be bothered with (not least because some of them involve playing the first person bits again!), so time to move on to something else, whilst waiting for Assassin’s Creed III…