On the 52 in 52 front, I managed it for the third year running, but it felt more like a collection of solid 7s, too many 6s and the odd 8 out of 10 book, rather than loads of standouts. I think less than half a dozen were published this century, so these are more old gold you may have missed, forgotten about or never got round to reading, rather than anything new.
The Razor's Edge, Somerset Maugham- such a brilliant, fluid writer and a biting take on the vapidity of 1920s-30s high society (albeit written in the 40s), with memorably acidic descriptions of people. Also read Cakes and Ale by Maugham, who I hadn't read before, and he is a fantastic author.
Visiting Mrs Nabokov, Martin Amis- really intriguing collection of short articles and interviews with figures from bizarre worlds from chess to minor celebrity. When writing non-fiction, Amis is fantastically engaging, even on subjects you don't care about, and I really enjoyed this (didn't really like Money, which I also read).
Appointment in Samarra, John O'Hara- great tale of hubris from 1930s America, with a guy's stupid actions at a club one night spiralling out of control. Maybe OTT towards the end, but thoroughly readable and layered with social commentary.
Kafka on the Shore, Haruki Marukami- I may be 20 years late to this party, but it was worth the wait. Fantastic book with Marukami's normal surreal, dream-like quality, featuring bizarre but engaging characters and I liked the way it left aspects open to interpretation. I wish I could speak to cats.
Honourable mentions to J.M. Coetzee: The Narrative of Jacobus Coetzee, Mikhail Bulgakov: A Country Doctor's Notebook, Anton Chekhov: The Lady with the Little Dog and Other Stories and H.P. Lovecraft: At the Mountains of Madness.