Joan Didion has finished a memoir on aging called Blue Nights that will be published by Knopf in 2011. It will be her first book since 2005’s devastating memoir of grief, The Year of Magical Thinking. Didion didn’t go into details about the new book, but did say about aging, “I’d just as soon not. I’d as soon skip it. Skip that aspect. Skip that.†If she’s as seminal on aging through your 70s as she was on aging through your 20s, expect bursts of conversations at retirement homes between women who are sure she is speaking just to them, and had also noticed without noticing that the shuffleboard court does always look wet early in the morning. [Guest of a Guest via Book Bench/NYer]