The Covenant of Baha'u'llah is a unique and priceless heritage, unprecedented in past Dispensations. It carries within itself enormous potentialities for the future in the unfoldment of Baha'u'llah's new world order and ultimately the Golden Age of humankind. This book provides a wealth of material for the study of the Covenant. The Kitab-i-'Ahdi, Baha'u'llah's own Will and Testament, and the Will and Testament of 'Abdu'l-Baha are quoted in full in this volume, and the historical events they refer to are explained.