This webinar provides an introduction to the writings and utterances of ‘Abdu’l-Bahá (1844–1921), the son and successor of Bahá’u’lláh (1817–1892), the founder of the Bahá’í religion. Following a general discussion of ‘Abdu’l-Bahá’s sixty years of literary and oratory activity in the form of books, treatises, letters, prayers, poems, and speeches written or delivered in three languages, this chapter categorizes His work chronologically into four periods.