Seven letters written by Shoghi Effendi and addressed to the Bahá’ís of the United States and the West, first collected in 1938, comprising The World Order of Bahá’u’lláh, The World Order of Bahá’u’lláh: Further Considerations, The Goal of a New World Order, The Golden Age of the Cause of Bahá’u’lláh, America and the Most Great Peace, The Dispensation of Bahá’u’lláh, and The Unfoldment of World Civilization.

This collection of letters by Shoghi Effendi unfold a clear vision of the relation between the Bahá'í community and the entire process of social evolution under the Dispensation of Bahá'u'lláh. The vital distinction between the Bahá'í community and the sects and congregations of former religions had already been made apparent at the time of their writing, but this collection establishes the Bahá'í Administrative Order as the nucleus and pattern of the world civilization emerging under divine inspiration at this focal point in human history.