I'm behind with everything and bloody hate coming up with Top howevermany's so I'm not pretending to try anymore. Instead, a list of books that just nailed it this year. In no particular order, or quantity, although I have had a go at combining them into geographical locations so you know - result.
Too Easy, J.M. Green (review to come at Newtown Review of Books, but this is the second book in the Stella Hardy series and it's required reading).
I'm mathematically challenged at the best of times, and never more so than when greeted by the need to come up with a "list" of a certain number. Okay so that's probably less to do with maths and more to do with a pathological hatred of arbitrary rules. So let's just go with this being the best of list of all the books (currently at 147 or so) that I was fortunate (in the main) to have read in 2015.