Epistemology is the philosophical study of knowledge. Without knowledge, scientific enquiry is meaningless and we can't begin to analyse the world around us. What is knowledge? How do you know you are not dreaming? Should we trust our senses? Presuming no prior experience of philosophy, this book covers everything in the topic from scepticism and possible worlds to Kant's transcendentalism. Clear and readable, Epistemology: A Beginner's Guide is essential reading for students and aspiring thinkers.