As an advanced introduction to the challenging topic of free will, this book is designed for upper-level undergraduates interested in a comprehensive first-stop into the field-s issues and debates. It is written by two of the leading participants in those debates-a compatibilist on the issue of free will and determinism (Michael McKenna) and an incompatibilist (Derk Pereboom). These two authors achieve an admirable objectivity and clarity while still illuminating the field-s complexity and key advances. Each chapter is structured to work as one week-s primary reading in a course on free will, while more advanced courses can dip into the annotated further readings, suggested at the end of each chapter. A comprehensive bibliography as well as detailed subject and author indexes are included at the back of the book.