The management of prisons is an intriguing and largely unexplored subject for study. There is a wide literature on the theory and practice of management in general and also on the management of large public institutions such as schools and hospitals, but comparatively little has been written on the management of prisons. This is partly because the world of prisons itself remains relatively closed. It is also because until fairly recently it was not acknowledged that there is a particular set of skills required to manage prisons properly.