This brief book of Wittgenstein's On Certainty lives up to its subtitle. The 'fields of thought' it covers are indeed wide; they include epistemology, ethics, aesthetics, religion, cognitive science, mathematics, psychotherapy and even Wittgenstein's political views. Brice successfully shows the broad reach of Wittgenstein's ideas... [This] interpretation is worth understanding, and Brice's book offers a concise introduction to it, as well as some interesting developments of it.