PROCESS CHEMISTRY: Pharmaceutical Applications presents a clear, practice-oriented exploration of how laboratory reactions are transformed into safe, robust, and economical pharmaceutical manufacturing processes. Written for students and industry professionals, this book bridges the critical gap between synthetic organic chemistry and real-world drug production. Rather than focusing only on reactions, the book emphasizes the decision-making behind process development. It explains how synthetic routes are designed, evaluated, and optimized for large-scale manufacture, highlighting the scientific and practical factors that determine success at plant scale. Key topics such as route selection, step economy, scalability, impurity formation, process robustness, and validation are discussed in a structured and accessible manner. The text is especially valuable for readers seeking to understand why reactions that succeed at bench scale may fail during scale-up, and how such challenges are anticipated and managed. By integrating chemical principles with considerations of safety, quality, cost, and reproducibility, the book reflects the realities of modern pharmaceutical development. Designed for M.Pharmacy and M.Sc students, early-career process chemists, and academicians, serves as both a learning resource and a conceptual guide, supporting coursework, examinations, and professional training while building a strong foundation in industrial process chemistry.