I've read The Last Wish and Blood of Elves. IIRC, The Last Wish is a collection of vignettes about the Witcher. I enjoyed it. Just light, fun reading about monster slaying.
I'm a pretty big reader, although I fell off the wagon a bit this year. I recently finished Haruki Murakami's new book, Killing Commendatore. I enjoyed it. Murakami's fiction is always quite strange. This one is a bit of a homage to the Great Gatsby.
I'm currently reading The Word is Murder by Anthony Horowitz. This guy is mostly known for his YA fiction, but is trying his hand at the adult game. He was approached by the estate of Sir Arthur Conan Doyle to write new Sherlock Holmes novel(s). I've read the first one (House of Silk), which was pretty good. My dad enjoyed it and his second offering (Moriarty).
Anyway, this book is in a similar vein--Horowitz has written a fictional version of himself as a "Watson" to a modern day "Sherlock." Enjoyable read so far; I think the mystery will have some clever twists.