The Báb and Bahá'u'lláh were unique in religious history. Never before had a Manifestation of God served as the Herald of another Manifestation, as the Báb did for Bahá'u'lláh. As a result, They are known as the Twin Manifestations of God. This book shares the facts and major milestones of the lives of both Manifestations, in a format that is easy for children to compare.