This brochure gives a simple and accurate understanding of what sales is, how to be an effective seller and what is most important in this matter. You can master the art of changing someone's opinion about something while creating the desire to take action. The author of the manual, Marat Salikhov, deals with issues of long-term financial planning, sustainable business development and the formation of a personnel reserve for Industry 4.0. Supports social initiatives related to the development of IT infrastructure and IT personnel in the regions of the Russian Federation. Participates in the activities of the International Rotary club, an association of professionals and businessmen for the implementation of humanitarian projects and the development of high ethical standards in the professional field.