Here are some valuable resources connected to the B.O.T.A. studies. 

The Pattern on the Trestleboard is a most startling set of positive statements relating to the ten Divine Emanations of the Qabalistic Tree of Life. It is both an affirmation of Reality and a meditational technique. It helps the spiritual aspirant attain a more conscious expression of this Reality. It is a tenfold picture of the destiny of man in the evolutionary scheme as revealed by the Secret Wisdom. In learning how to live this Divine Pattern on the Trestleboard, we become the full manifestation of these Cosmic attributes. 

The Emerald Tablet is a highly inspirational hermetic text from Hermes Trismegistus.