- Answered Questions, Some, by Abdu'l-Bahá (2014). 'Table talks' given by ‘Abdu’l‑Bahá in ‘Akká between 1904 and 1906 in response to questions posed by Laura Dreyfus-Barney; first published in 1908, the new 2014 edition has been extensively retranslated.
- Images of Christ in the writings of 'Abdu'l-Bahá, The, by Maryam Afshar (2004). 'Abdu'l-Bahá addressed Christian subjects in his talks with Bahá'ís of Christian background and his public talks in the West. He elucidated the meaning of Christian texts and doctrines, and referred to Christ's role and nature.
- Kitáb-i-Aqdas (Most Holy Book): Notes on the "choice wine", by Abdu'l-Bahá, Brent Poirier, Iraj Ayman, Frank Lewis (2000).
- Kitáb-i-Íqán: The Book of Certitude, by Bahá'u'lláh, Shoghi Effendi, trans. (1931). Major theological work by Baháʼu'lláh, written prior to his declaration of mission.
- List of Articles by John Hatcher on BahaiTeachings.org, by John S. Hatcher (2021). List of online essays and articles by Dr. John Hatcher.
- Theology of the Sacraments in the Roman Catholic Church, The, by Kevin Brogan (2001). Helping Bahá'ís understand the Catholic church's historical perspectives and spiritual significance placed on sacraments, which are: Baptism, Penance, Confirmation, Eucharist (or Mass), Marriage, Holy Orders, and Sacrament of the Sick (“Extreme Unction").
- Translation List: Provisional Translations of Baháʼí Texts, Adib Masumian, trans. (2009-2025). Index to talks, letters, and other items translated from Persian and Arabic to English by Adib Masumian; listed here for the sake of search engines and tagging.
- Unpublished Talks by 'Abdu'l-Bahá, by Abdu'l-Bahá (1928). Four short talks given by ‘Abdu'l-Bahá in London, December 1912. These talks have not been published elsewhere and the translator is not identified. The original Persian text alluded to at the beginning seems not to be readily available.
- Wine of Astonishment, The, by William Sears (1963). Discussion of Christian doctrines such as the ritual of baptism, the bread and the wine, confession and penance, the meaning of 'Son of God', the secret of the trinity, heaven and hell, and the meaning of the resurrection.
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