This book examines the role of flavonoids from their origins in traditional medicine to their modern applications in cancer treatment. By connecting ancient remedies with contemporary pharmacological advances, it highlights the growing potential of flavonoids in oncology. Key concepts include the isolation and purification of flavonoids, their role as antioxidants and anti-inflammatory agents, and their ability to modulate cancer cell signaling pathways. The book also examines the synergistic effects of flavonoids when combined with conventional cancer therapies, providing insights into ongoing clinical trials. This work uncovers the biochemical mechanisms of flavonoids and their therapeutic potential, making it an essential resource for researchers and practitioners alike. It addresses the growing interest in combining ancient knowledge with modern techniques for disease prevention and treatment, particularly in oncology. Ideal for senior undergraduate and graduate students, industry professionals, and academics, this book serves as a vital reference for anyone involved in cancer research, herbal medicine, pharmacology, and integrative healthcare. By providing both historical context and contemporary applications, this book is essential for anyone interested in the past and present impact of flavonoid research.