One of the largest book stores in all of Bonn is the Thalia. The bookstore is more like a library and you will love how open, and spacious it is inside. You can either grab a book and sit in the adjoining reading section slowly reading it or you can take some home and enjoy them at the comfort if your house. They have this beautiful section dedicated to kids, which is filled with books, story books, color books, picture books and a separate area for activity. They also host many events throughout the year.