Systemics can be seen as an attempt to navigate our increasingly complex and difficult-to-understand world. The book provides an easy-to-read introduction to this new field of science. The book is aimed at students as well as professional practitioners. The book deals with: the background, history, and objectives of systemics, basic system concepts and definitions, systems thinking, systems modelling and system description, system simulations and systemic computer experimenting, systems design, systems intervention and organizational transformation, hindrances to systemic applications and possible ways to overcome them, and internalizing of attained knowledge.