This discussion of the need to improve the quality of professional formation within the harmonization of teaching information professionals in a developing country argues that a firm theoretical area of knowledge is needed, and suggests that this paper can be considered as a point of reference for the harmonization of teaching the three professions. Topics considered include: (1) background information on schools of librarianship in Colombia; (2) justification for structuring a theoretical body of knowledge for the profession; (3) theoretical area objectives within the harmonization program--with a view to the internal model within the developing country; and (4) minimum contents proposed for a curriculum. (CGD)