I just finished Barrayar, the second book in the Miles Vorkosigan series (or at least, the second I read; reading order is a bit malleable.)
...based on the first two, I have a strong suspicion my next consecutive 13 novels will be the remaining 13 Miles Vorkosigan novels.
They are all wonderful.
I'm in the middle of Bujold's latest book, and it's about Cousin Ivan. It's called Captain Vorpatril's Alliance.