A book of famous English mathematicians that systematically sets out the main questions of the theory of non-abelian autodual monopoles. The rapid development of this theory, the equations of which are quite integrable, is associated with the methods of the theory of twistors and Gnperkaler geometry and made it possible to describe the module spaces of monopoles and the simplest scattering processes; The spaces of nnstanton modules, so important in modern topology, are also associated with this dough theory.