Computers, robots, computer networks and mechatronic systems invade the field of cognition: computations, games, translations, computer vision, speech recognition, replication by robots of movements taught by gestures. This is the field of automated cognition, "Cognitics". Now what is intelligence, learning, or abstraction? How to assess complexity? How much knowledge is required to play Ç heads or tails È? The classical theories had not answered these questions accurately, quantitatively, technically. The book does. It discusses again some classical bases and then offers for the first time in an integrated form, illustrated with many examples, and yet concisely, the main elements of the "MCS" theory for cognitive sciences, gradually developed, demonstrated and published by the author in the scientific literature, in the past decades.