- Abdu'l-Bahá. Bahá'í World Centre, trans. Additional Tablets, Extracts and Talks (2018/2023). 167 selections, updated August 2023.
- Bahá'u'lláh, Abdu'l-Bahá, Shoghi Effendi, Universal House of Justice. Helen Bassett Hornby, comp. Lights of Guidance: A Bahá'í Reference File (1988). The classic Bahá'í reference book. This is its first online edition.
- Abdu'l-Bahá, Shoghi Effendi, Universal House of Justice. Perspectives on Science and Religion (2013-09). On questions about discourses in the scientific community, the existence of the soul, and certain utterances of Abdu'l-Bahá on issues in science.
- Keven Brown. Reflection on the Theory of Alchemy as Explained in the Bahá'í Writings, A (2002/2012). Bahá'u'lláh and ‘Abdu’l-Bahá referred to the 'hidden craft' of alchemy as part of divine philosophy, but which would only be used wisely and properly appreciated after the attainment of human maturity; some Bábí and Bahá'í references to alchemy.
- Bahá'u'lláh. Signs for the Coming of Age of the Human Race (1992). Passage from the Writings of Bahá'u'lláh, posted as a standalone page here for ease of reference and tagging purposes.
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