- COLOUR and HEALING
A wonderful book on color and healing by a student of Rudolf Steiner. A brief introduction to color as a substance of the soul, and Goethe's Theory of Color
- THE HUMAN AURA
By Swami Panchadasi (William Walker Atkinson). An awesome book that penetrates into the reality of the human aura which is said to be the subtle, invisible emanation radiating from every individual. This books teaches how to see the aura and how to strengthen and purify it.