In the Bhagavad Gita, Lord Krishna explains to Arjuna his duties as a warrior and prince and elaborates on different Yogic and Vedantic philosophies, whereas in Uddhava Gita, Lord Krishna explains to his friend and devotee, Uddhava, about spirituality, religion, code of conduct for various classes of society and stages of life, supremacy of devotion, different paths to enlightenment, mind as a root cause of all miseries and many other similar topics.

You will gain a lot of spiritual wisdom after reading this book.