This set includes the ACE Personal Trainer Manual Fourth Edition and ACE's Essentials of Exercise Science for Fitness Professionals. These resources provide foundational knowledge for individuals pursuing a career in health and fitness. Both volumes cover key concepts required for understanding human movement, exercise programming, and client assessment strategies. The books are in very good condition and have been well-maintained. The pages remain clean and legible, making them suitable study tools for those preparing for fitness industry examinations or seeking to expand their professional library. The bindings are secure and the text is free from significant markings. Whether you are studying for the ACE certification exam or building your knowledge base as a fitness professional, these manuals serve as comprehensive guides. This package contains the essential textbook materials needed to review exercise science principles and the specific requirements for personal training practice.