- Lil Osborn. Alice Buckton: Baha'i Mystic (2014-07). Buckton, a central figure in the re-establishment of Glastonbury as England's spiritual centre, visited Abdul Baha in Egypt and received him at her home in Surrey, and visited the U.S. to help spread the Bahá'í movement. Biographies.
- Lil Osborn. Alice Buckton's Glastonbury Pilgrimage (2020). Buckton's spiritual awakening and pioneering activities in Glastonbury, including her setting up a womens' and pilgrims' hostel, and the Pilgrimage of Avalon. Biographies.
- Lil Osborn. Baha'i Faith and the Western Esoteric Tradition, The (2015). The importance of individuals seeped in the mystical, the occult, and esoteric to the early 20th-century creation of Bahá'í perspectives on modernity and mysticism. Articles-unpublished.
- Lil Osborn. Baha'í Faith and Wicca, The: A Comparison of Relevance in Two Emerging Religions (2009). On the growth of the Baha’i Faith and Wicca in Britain, compared through the lens of the "Theory of Relevance" as the driving force in their further development. Articles.
- Lil Osborn. Bahá'í Faith, The (2021). Origins; Bahá'u'lláh; `Abdu'l-Bahá and Shoghi Effendi; 'world religion' from 1957; beliefs and practices; controversies; persecution. Encyclopedia.
- Lil Osborn. Extraordinary Life and Work of Robert Felkin, Bahá'í Mage, The (2012). Felkin was a physician, missionary, a Bahá'í — and a Golden Dawn "magician" searching for esoteric truths. Articles-unpublished.
- Lil Osborn. Extraordinary Life and Work of Wellesley Tudor Pole, The: Baha'i Seer (2013-07). On the role of Bahá'í beliefs in the life and spiritual quest of Tudor Pole. Biographies.
- Lil Osborn. Female Representations of the Holy Spirit in Bahá'í and Christian writings and their implications for gender roles (1994). A response to feminist theologian Mary Daly's argument that a male representation of God reinforces patriarchy with the suggestion that sexual equality is independent of, and unrelated to, gender images of the Divine. Articles.
- Lil Osborn. Mary Magdalene: Lioness of God in the Bahá'í Faith (2013). On the symbolic role of Mary Magdalene in the Baha’i tradition as a female archetype in the context of the doctrine of "return," and thus linked to the poet Tahirih, heroine of the Babi-Baha’i dispensation. Articles-unpublished.
- Lil Osborn. Men and the Bahá'í Faith: The Role of Indigenous Men in the Early Bahá'í Community in the British Isles (2016). Includes slide-show included when presenting the paper at the Bahá'í Studies Seminar, Kellogg College, Oxford (July 2016). Articles-unpublished.
- Lil Osborn. Never Be Afraid to Dare: The Story of 'General Jack,' by Jan Jasion: Review (2004). Reviews.
- Lil Osborn (published as L.C.G. Abdo). Religion and Relevance: The Baha'is in Britain 1899 - 1930 (2003). On the Bahá'í history in the British Isles during the first decades of the 20th century, when it was an inclusive supplementary religious movement not requiring renunciation of existing affiliation; identification of the 80 or so earliest British Bahá'ís. Theses.
- Lil Osborn. Shoghi Effendi in Oxford, by Riaz Khadem, and Her Eternal Crown, Queen Marie of Romania and the Bahá'í Faith, by Della Marcus: Reviews (2001). Reviews.
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