A collection of printed works primarily focused on the study of matter, its properties, how and why substances combine or separate to form other substances, and how substances interact with energy. This category encompasses literature that delves into the various branches of chemistry and its relationship with health sciences, offering insightful knowledge on the chemical processes occurring in living organisms. It includes both introductory and advanced level texts, making it suitable for a wide range of readers from students to professionals in the field of science.