To learn more about five element theory:

• The Five Elements of Self Healing, Jason Elias & Katherine Ketcham
• Healing Your Emotions, Angela Hicks & John Hicks
• Staying Healthy With the Seasons, Elson Haas
• Traditional Acupuncture: The Law of the Five Elements, Dianne Connelly

Additional  Reading:

• Healing With Whole Foods, Paul Pitchford
• Spontaneous Healing, Andrew Weil M.D.
• Feminine Healing, Jason Elias & Katherine Ketcham