"Salicylic Acid - A Plant Hormone" is a specialized book that explores the role of salicylic acid as a phytohormone in plant biology. It highlights the significance of this natural chemical compound, which is widespread in plants and has a substantial impact on growth, development, photosynthesis, and defense mechanisms against pathogens. The book provides a comprehensive analysis of the functions of salicylic acid and places it in the context of other well-known phytohormones such as auxins and gibberellins. Through contributions from experts from various parts of the world, a wide range of perspectives and research findings are presented, emphasizing the relevance of salicylic acid in plant science. Readers will gain valuable insights into the mechanisms by which salicylic acid influences plant growth and regulates physiological processes in plants. This book is a valuable resource for students and professionals engaged in plant biology and related disciplines.