Coffee: Health Benefits, Side Effects, and Phenomena by Ns. Arif Rohman Mansur S.Kep. M.Kep and Sandrina Indah Paraswati, offers a comprehensive exploration of coffee from multiple dimensions—its historical roots, physiological impacts, cultural significance, and medical implications. The book delves deep into coffee’s role as a globally cherished beverage, tracing its journey from ancient Ethiopian highlands to contemporary coffee shops around the world. It discusses coffee’s origin, its role as a psychoactive substance, and its integration into various cultures and lifestyles. The text examines the botanical journey of Coffea Arabica, highlighting its discovery by Kaldi the goat herder and the subsequent spread facilitated by Sufi mystics in Yemen. It explores how coffeehouses became centers of intellectual discussion in the Ottoman Empire and Europe, influencing prominent thinkers like Kant and Voltaire, and fostering societal transformations. The physiology of coffee is detailed, including its absorption, metabolism, and diverse physiological effects on the human body, such as impacts on the nervous system and various health outcomes. The protective effects against numerous diseases, including cardiovascular diseases and diabetes, are discussed, emphasizing the beneficial roles of coffee’s various bioactive compounds. The potential negative health impacts of excessive coffee consumption, such as caffeine addiction, sleep disturbances, and various physical symptoms, are also addressed. Each section offers a rich narrative supported by scientific research, cultural anecdotes, and historical evidence, making it a valuable resource for both coffee enthusiasts and scholars interested in the profound effects of this ubiquitous beverage. The book not only celebrates coffee’s rich heritage and health benefits but also presents a balanced view by discussing its potential risks and side effects, offering readers a holistic perspective on coffee’s place in human health and society.