Tell Me Something I Don’t Know is a collection of original dialogues in epistemology, suitable for student readers but also of interest to experts. Familiar problems, theories, and arguments are explored: second-order knowledge, epistemic closure, the preface paradox, skepticism, pragmatic encroachment, the Gettier problem, and more. New ideas on each of these issues are also offered, defended, and critiqued, often in humorous and entertaining ways.