The present thesis entitled Limiting factors for the incorporation of complementary attractions of the touristic package of the Historical Center of Trujillo for its commercialization, has as objective to identify the factors that limit the incorporation of complementary attractions in the tourist package Trujillo, commercialized by the operating agencies of the Center Historical. _x000D_ The investigation determined that one of these factors is the lack of interest and ignorance of travel agents in the planning and preparation of tourist packages, where only 20% of this staff knows and complies with the technical processes for this purpose, which are first to identify the attractions, second to formulate the tourist circuit, third to select the suppliers, fourth to formulate the tourist program and fifth to elaborate the cost. _x000D_ It is the scarce budget to manage the complementary ...