''I seem to have banged on this year rather more than usual. I make no apology for that, nor am I nervous that it will it make a jot of difference. I shall still be thought to be kindly, cosy and essentially harmless. I am in the pigeon-hole marked ''no threat'' and did I stab Judi Dench with a pitchfork I should still be a teddy bear.''Alan Bennett''s third collection of prose Keeping On Keeping On follows in the footsteps of the phenomenally successful Writing Home and Untold Stories, each published ten years apart. This latest collection contains Bennett''s peerless diaries 2005 to 2015, reflecting on a decade that saw four premieres at the National Theatre (The Habit of Art, People, Hymn and Cocktail Sticks), a West End double-bill transfer, and the films of The History Boys and The Lady in the Van. There''s a provocative sermon on private education given before the University at King''s College Chapel, Cambridge, and ''Baffled at a Bookcase'' offers a passionate defence of the public library. This is an engaging, humane, sharp, funny and unforgettable record of life according to the inimitable Alan Bennett.