www.normanrosenthal.com new book out in 2005 on Seasonal Affective Disorder by Dr. Norman Rosenthal.
This book can be ordered to check out for free from your local library system. Also, "Beating the Blues" New Approaches to Overcoming Dysthymia and Chronic Mild Depression, by Michael Thase and Susan Lang, March 23, 2006 May be a big help for someone with moodswings, mood disorders.
I am in alanon and found the mood charts helpful to track symptoms of mood, feelings, behavior that has allowed me to get to feeling better.
I sort of made up my own chart in combination to a mood chart given to me by my counselor---since I suffer from both SAD and Moods!