Warren is Associate Professor of Psychiatry at the University of Queensland. His writing has appeared in many publications and he is a winner of the New Philosopher’s Award.

His book, Lovers of Philosophy explores the intimate lives of seven philosphers, investigating the way their most personal experiences came to shape their ideas.

Warren has a wonderful way of weaving the personal with the public, so that, while he tells the grim story of, for example, Nietzsche's emotional trials and Sartre and Foucault's struggles with love, he is also explaining very complex philosophical ideas in an accessible way.

He manages to draw a narrative of thought from one philosopher to another, from Nietzsche's analysis of the failure of religion through Sartre's ideas of the freedom of the individual, to Foucault's understanding of how we are bound by our culture.