Footnote Books is the best used bookstore in San Diego, a hidden gem with a very warm feeling inside. It is jam-packed in a good way with a great selection. It is particularly noted as the best for classic science fiction and fantasy, with a decent science-fiction section, alongside good selections of classics, contemporary literature, vintage manga, and novels. The store is affordable and visitors rarely leave without buying anything, often going over budget from the sheer amount of cool finds. There is something for everyone. The owner is great, kind, attentive, and super helpful when searching for particular books. Some rules, like no drinks and leaving large bags at the front, are for the security and safety of the valuable inventory. It is a commendable business that customers always try to visit when in the area.