Curious and creative teens can now uncover the worlds of systems and complexity theory – captivating, interdisciplinary fields that explore often overlooked questions: Just how do systems work? How do the pieces within them fit together? How do wholes become more than the mere sums of their parts? From the human body, to ant colonies, superorganisms and cities, this concise, full-colour, richly illustrated guide takes the reader on a captivating journey of discovery. From the principles that underlie emergence, adaptive change, patterns and regularity, to the world of complexity theory and more, readers explore, uncover and learn as they apply their ingenuity to gain a completely new perspective on some of the extraordinary systems at work on our planet.