Collins Astronomy Photographer of the Year: Collection 2 from 2013 for £4 from Amazon. Unfortunately Collection 1 from the same year is still at £22.95 in hardback.
Great if you've got an amateur astrophotographer in your life that you want to wind up: ("So why don't your photos look like that?" "Wrong mount *mumble* *mumble*"). Otherwise a nice book of pretty pictures.