Cybernetics comes in two flavours: a more engineering flavour (first-order cybernetics); and the less known though in many ways older second-order cybernetics, relating more to the humanities, design and social sciences. This second-order cybernetics has been under-theorised in universities, and other research environments. Karl H. Müller's new book, his second volume on the New Science of Cybernetics, provides outstanding, general and innovative coverage that should enable scholars to bridge the gap between the work of second-order cyberneticians and others who work with similar approaches, and these institutions. It is an important book that can lead to significant insights, methods and actions.