Kayumba David is an accomplished author known for his works that span across themes of spirituality, African experiences, and healthcare chaplaincy. His writings often delve into profound social, political, and personal subjects.

One of his notable works is "Visas: The Irony of Freedom", where he critiques the paradoxes faced by many Africans regarding international travel and freedom​

He also authored "Hope and Healing: A Chaplain's Handbook," which reflects on his experiences as a chaplain and emphasizes the importance of compassion and spiritual care in healthcare and prison environments​

Kayumba's works reflect his personal journey through theological study and lay ministry, having faced challenges within religious institutions, especially during his time in Belgium, where he became an advocate for open theological debate​

His contributions in literature offer insights into African realities, the complexities of modern spirituality, and the role of chaplaincy in emotional healing.