This tutorial is devoted to anode processes in electrochemical and chemical technologies for the production of non-ferrous metals (electrochemical refining), surface treatment of ferrous and non-ferrous metals (etching, polishing, oxidation) and shaping (dimensional electrochemical processing). Modern technologies, ways of their development, advantages and disadvantages, prospects for their application are presented. Principles of classification of anode processes by mechanism and stability of metal or anode oxide film dissolution front are proposed.