Pretty much just chanting
Srimati Radharani, Lord Sri Krishna
Bhajans, Kirtans
This is Life, Tukarama, Airplane
the Abhay Charan series
Caitanya Caritamrta, Caitanya Bhagavat, Sri Caitanya Mangala, Teachings of Lord Caitanya, Bhakti-rasamrta-sindhu, Srimad Bhagavatam, Bhagavad Gita As It Is
Nityananda Rama, Haridas Thakur, Giri Govarhan, Lord Sri Krsna, last but certainly not least AC Bhaktivedanta Swami Prabhupada ki jaya!