Terry Gross

Cooper helped popularize the Hammond B3 organ as part of rock music, performing on recordings of Bob Dylan, Jimi Hendrix, The Rolling Stones, and The Who. He was a member of the legendary Blues Project, and later founded the group Blood Sweat & Tears. Now he teaches at The Berklee College of Music in Boston, and writes a monthly column for EQ Magazine. His autobiography, "Backstage Passes & Backstabbing Bastards: Memoirs of a Rock 'n Roll Survivor" (Billboard Books) which was first published in 1977 has just been updated and reissued.

New York writer Daniel Drennan has written a new collection of essays about life in Manhattan. His book "The New York Diaries: Too True Tales of Urban Tramau" is published by Ballantine Books.

Dr. Norman Rosenthal is an expert on seasonal affective disorder a/k/a SAD. Commonly called the winter blues, Rosenthal talks about why many people get depressed during the winter months and how light therapy can help. His book "Winter Blues: Seasonal Affective Disorder, What it is and How to Overcome it." by Guilford Press.