The manuscript deals with topics in health and healthcare economics theories, principles, models and practices. This book is designed for students specializing in either Health economics or healthcare economics as their major elective course for both undergraduate and postgraduate students. The uniqueness of this publication is that, it is a self-teaching guide manuscript which explains the mathematical models of health and healthcare economics in simple plain languages by giving logical steps for minimalism and elucidation. To assist my readers amply, I have structured the publication in such a manner that it follows logically from the conceptual, principles, practices, and theories of health and healthcare production. Furthermore, it also discusses best practices associated with healthcare production, accessibility, and consumption. In all the principles and practices of healthcare economics book is made up of eleven (11) chapters.