No, we have books on many other subjects.
Whilst we do have a lot of books on and about masonry we have quite a number of books in the following categories;
Anthropology, Archaeology, Astrology, Australia, Australian History, Egyptology, Encyclopedias and Dictionaries, General History, Music, Poetry, Mysticm, Philosophy & Theory, Religion, Non fiction as well as books on other concordant masonic orders.