This handbook provides a practical guide for teachers and non-academic C.S. Lewis enthusiasts who lead Lewis study groups. It can eliminate the weeks of research necessary to build a course from scratch and can also be used by students as a supplementary text. The chapters cover all of Lewis's novels, plus Mere Christianity and The Screwtape Letters. Each chapter includes the following components: I. A biographical sketch of Lewis's life at the time he was composing the book, including his sources and influences. This section provides basic background for a well-rounded discussion. II. A chapter-by chapter summary for quick reference or brush-up before class sessions. The summaries can also be read or incorporated into a background handout if course leaders opt to cover particular sections rather than the entire work. III. A discussion of major themes to help readers understand Lewis's concerns and how he developed them. IV. Study questions geared to a range of reading levels.. V. A For Further Reading annotated bibliography of books related to the book under discussion. Both Authors have facilitated Lewis discussions in college classrooms, public seminars, and church gatherings. Appendices include their prospectus and reading lists for small groups and a college course syllabus.