I didn't do reading lists for every month this year, and all year I've had the nagging feeling that I wasn't keeping track of every book I'd read. I rely too much on Goodreads, which sometimes records the date you finish and rate a book but sometimes doesn't, so I can't always be sure that the books they say I read in a certain month were the only books I read then, especially if it's a re-read.

And that is my way-too-long explanation. :-D