This is the fifth edition of the bestselling AutoCAD reference-tutorial, the AutoCAD Bible, by Ellen Finkelstein. It  is very popular, both among novice and experienced users, because of its comprehensiveness. No features are left out. Even some of the employees at Autodesk keep this book at their workstations. "Even we need to look things up," writes an AutoCAD beta manager. "This book is the best one on AutoCAD that I have seen and I will recommend it to others. You have a more complete and comprehensive book than any others I have read." With this edition Finkelstein now includes coverage of AutoCAD LT. She also starts the book

Part I: AutoCAD and AutoCAD LT Basics
Part II: Drawing in Two Dimensions
Part III: Working with Data
Part IV: Drawing in Three Dimensions
Part V: Organizing and Managing Drawings
Part VI: Customizing AutoCAD
Part VII: Programming AutoCAD
Part VIII: Appendixes
…etc…