Primary care is the day to day healthcare that is given to the patient. It involves the broad scope of healthcare that is concerned with patients of all ages, of all socioeconomic and geographic origins and patients seeking to maintain optimal health. It also involves patients with acute and chronic physical, mental and social health issues such as multiple chronic diseases. Hypertension, depression, diabetes, asthma, COPD, anxiety, etc. are some examples of common chronic illnesses usually treated in primary care. Many basic maternal and child health care services also fall under this domain such as family planning services and vaccinations. Primary care results in better health outcomes, reduced health disparities and lower spending. This book unravels the recent studies in the field of primary care. The aim of this book is to present researches that have transformed this discipline and aided its advancement. This book will serve as a reference to a broad spectrum of readers.