My college roommate always had an impressive recall of the (many) academic sociology/philosophy books he'd read. Some of this is down to him having a gifted mem

My college roommate always had an impressive recall of the (many) academic sociology/philosophy books he'd read. Some of this is down to him having a gifted memory, but also some is due to his use of a generally applicable technique where he summarized each book he read into a single page, forcing re-engagement and consolidation. Inspired by this, I'm experimenting with writing and posting online reviews of books I've read.