Ancora Avicenna Pen is devoted to one of the greatest names in science of the world. Ibn Sina (Avicenna) wrote more than 450 studies in 29 regions of science, only 274 of which reached these days. "The Canon of Medicine" gained worldwide fame. This work is one of the major medical works of Avicenna. "The Canon of Medicine" – is a medical encyclopedia, which describes everything that is related to the prevention and treatment of diseases – the theory and the practice. The presumable date of the "The Сanon"`s creation is 1025.