Three Easy-to-Use Keys unlock the exhaustive Thompson Study System. 1. The Margins of each page of the Bible give you clear directions to the specific location of your next chosen study item---and other study helps as well. These include: A. Keys for Studying each Bible Book; B. Chapter Analysis; C. Topical Guide Number; D. Chain Reference; E. Complete Verse Analysis; F. Parallel Passages; 2. Two Important Indexes ---conveniently located immediately following the last page of the actual text of Scripture ----provide immediate links and guides to every topic, theme, person, place, and event wherever it is mentioned ---anywhere in Scripture. A. Alphabetical Index; B. Numerical Index. 3. Comprehensive Informational Databases ---Over 75 practical features arranged in 10 departments offer on-the-spot help for nearly any Bible study question you may encounter.