Some of philosophy's most intriguing questions about reality and knowledge are introduced in this book. It outlines possible answers to puzzling questions such as: what kind of thing are you? What - if anything - can you know? Over the centuries, philosophers have made many attempts to answer such questions and contemporary philosophers continue to seek solutions. This book explains many of those attempts in a clear and lively way, encouraging questioning and independent thought. It also links questions about reality and knowledge to questions about morality. The concepts explained include: personal identity; free will and determinism; evil and God; universals and essences; life and meaning; death and harm; truth and facts; belief and evidence; knowledge; the senses and pure reason; and sceptical doubts. Throughout, philosophy is shown to be adventurous, intellectually significant and personally deep. The book is aimed at beginning students taking an introductory philosophy course, second and third year students taking a post-introductory course in metaphysics, epistemology or ethics and general readers interested in the questions philosophy raises about our lives.