Cassiopeia Books is a cute little bookstore downtown with a lovely atmosphere and good vibes. The staff is friendly, kind, sweet, and helpful, offering great recommendations. It has a wide and amazing selection of books, including great reading choices and lots of Montana history books. The store also features cool locally made candles and such, along with interesting Mystery book bags. Prices are great and amazing. With its creaky wooden floors, it is a great stop and a nice surprise in downtown Great Falls.