Parnassus is in Green Hills, and I highly encourage you to go in and shop, especially with Christmas coming up. It's one of those great stores where you can talk with staff and ask for recommendations, or you can just wander the aisles and enjoy a comfortable chair while you relax. And, if you're lucky, you can pet a shop dog.
Parnassus is rapidly becoming a Nashville institution, and it really filled a void that happened when Davis-Kidd left the market. If you've never been, then you'll find it on Hillsboro Road in the same shopping center as Levy's and Donut Den, which are two other Nashville traditions that you should visit sometime.
I want to give a big thank-you to Parnassus Books for giving me a chance, and I hope that you'll linger a bit longer at the "Local Authors" sections (there are two of them), where you can pick up a copy of Memaw's Maxims and lots of other great books.