Microsite in which the Manual for the selection, pre-registration, elaboration and contracting of didactic communication media and 4 annexes in which the communicational, pedagogical, attitudinal and axiological competences of the expert in selection and prescription of means of communication are presented is presented in an interactive way. didactic communication, didactic media are conceptualized, the importance of its use in the professional training given in the SENA is highlighted, the classification of didactic communication media is described, specifying the technical and pedagogical characteristics of the printed, sound media , audiovisual and computer, guidelines are given for acquisition and internal or external production of teaching media according to the type of media (printed, audio, audiovisual or computer) and the stages of formalization, reception and contracting of the production of a medium.