This textbook presents epidemiology in a practical manner, contextualized with discussions of theory and ethics, so that students and professionals from all academic backgrounds may develop a deep appreciation for how to conduct and interpret epidemiological research. Readers will develop skills to: ·         Search for and appraise literature critically ·         Develop important research questions ·         Design, plan, and implement studies to address those questions ·         Develop proposals to obtain funding ·         Perform and interpret fundamental statistical estimations,           tests,and models ·         Consider the ethical implications of all stages of research ·         Report findings in publications ·         Advocate for change in the public health setting Epidemiology is and will remain a discipline in motion, and this textbook aims at reflecting this dynamism and keeping pace with its momentum. This textbook is not only a classroom tool with high utility but also an essential reference and guide for those engaging in research involving human subjects.