Language is failing Beryl Dusinbery. She is 99 years old and having trouble retrieving words. “One minute she has a word, then she hasn’t. Where does it go?” Conversely, Shimi Carmelli, 91, can’t forget.

“Tell me,” Kurt Vonnegut asks Jane Marie Cox, his future wife, “would you enjoy living with me, sleeping with me, leading a carnival life?”

The rules of shelving can seem arbitrary, even arcane, but the fundamentals are easy to learn: two hard covers, and no more than three paperbacks of the same title, on each shelf.  The exception is the face-out. If the jacket is displayed horizontally, behind it you can stack as many books as can fit.