Writing about a book after I've finished reading it helps me think about it again, place it in the context of other books I've read, and savor passages again that I liked enough to mark while reading. But most importantly, writing about a book is a way to save one little part of my interior life. Emotions are a part of the experience of reading a book, and thus my book journals are a record of characters, stories, sentences and writers that meant something to me.
For the record, I wrote this morning about Meredith Hall's memoir "Without a Map," and tomorrow I'll write about "In the Lake of the Woods" by Tim O'Brien, which I finished two night ago. I can't wait to see what I have to say about that book!