The Tau Empire (2) (Legends of the Dark Millennium): Campbell, Braden, Chambers, Andy, Parrino, Joe, Fehervari, Peter, Smillie, Andy, Kelly, Phil: 9781784964573: Amazon.com: Books
Steam Workshop::Advent to T'au Empire [WOTC]
1292: Pi vs. Tau - explain xkcd
Dawn of War 2: The Last Stand - Tau Gameplay Part One - YouTube
Anyone thought about how tau is 2 times pi but the symbol is literally just one half of the pi symbol? : r/mathmemes