Hindu Monotheism, Element Series (Cambridge University Press, 2020).
Religion and the Philosophy of Life (Oxford University Press, 2019.
The Truth Within: A History of Inwardness in Christianity, Hinduism and Buddhism (Oxford University Press, 2013).
The Importance of Religion: Meaning and Action in Our Strange World (Oxford: Wiley Blackwell, 2011).
The Ascetic Self: Subjectivity, Memory and Tradition (Cambridge University Press, 2004).
An Introduction to Hinduism (Cambridge University Press, 1996).