'Yours Ever: People and Their Letters' is a new book by author Thomas Mallon. I found this book from an entry on Twitter that linked to '100 Notable Books of 2009' at the NY Times. I also found this listed on the Indie Bound website which promotes buying books from your local independent bookstore.
If you visit National Review Online (NRO) you can listen to a short interview with the author as he discusses this book which just came out (Nov. 2009).
In addition to his novels, Mr. Mallon also wrote 'A Book of One's Own: People and Their Diaries' published in 1984.
I haven't read either of these yet, but plan to get them both. Common Good Books (CGB) is a local independent bookstore I recently discovered on a day trip with a friend. This store is owned by Garrison Keillor and opened in St. Paul, MN three years ago. The bookstore sits below Nina's Coffee Cafe which is a cozy, comfy, casual coffee shop that lends itself to promoting and inviting local writers to hone their craft while relaxing in the coffee shop with their peers.