In his study, Gareth Morgan focuses on the metaphors that have been used throughout history to define and conceptualize organizations. The author argues that all organizations and organizational theories are structured according to implicit conceptions or metaphors. These metaphors influence the way we think about and manage our organzation. To Morgan, a metaphor is not simply a way to enrich and embellish our speeches or texts, but actually implies a distinct way of thinking about the world we live in. In the chapters of the book, organizations are analysed as machines, organisms, brains, cultural systems, forms of government, psychic prisons whose members remain trapped in them by their own thoughts and opinions, flows in constant evolution and, finally, as instruments of power.