It's funny you should mention it, as I just decided to make a record of my reading at the start of this month: what's the point of being a librovore if one doesn't retain much of what one's read?
So far this month I've read/re-read
The Anatomy of Deception – Lawrence Goldstone Brat Farrar – Josephine Tey Miss Pym Disposes – Josephine Tey Uglies – Scott Westerfeld
and I'm currently reading
The Incantation of Frida K - Kate Braverman Natalie Wood: A Life - Gavin Lambert