The information based organization and learning organization applied to library services development. It discuss the Peter Drucker`s concept of information based organization and the Peter M. Senge`s theory of learning organization, as well as Shelley E,]. Phipps´s comments in relation to library planning and administration. It also analyses the methologies related to systems thinking, personal mastery, mental models, building shared vision and team learning and other elevant issues which are part of Senge´s fifth discipline theory.