A posthumous collection of Guénon's in-depth synthetic view concerning various sacred symbols throughout the world. It is of an immense value, I highly recommend it for anyone interested.
I personally read the French original version, but to the English readers, 'caveat lector'... Martin Lings, the editor of the first English translation (1995), deleted some parts of some articles (Chapter 6 and complete deletion of Chap 71). However, I am not sure if the current available edition has the same..."problem". In all cases, one should always do his best to avoid translations, if possible.