This book's title, Science, can be so short because it is to be considered as an encyclopaedia entry under the letter ‘S’ in the series ‘Concepts in the Social Sciences’, to be followed by Socialism (Bernard Crick) and Social Science (Gerard Delanty). This ecological niche inside an encyclopaedia about the social sciences provides a basic hermeneutic key to this book, which might explain a certain ‘light’ tone, with its carelessness and nonchalance, quite tasty for social scientists but quite allergenic to mathematicians, logicians, physicists, chemists, biologists and other strange people like them. Too bad for those social scientists who will read only this encyclopaedia entry to learn, not even second-hand, but third-hand, about those other sciences.