Graphics, Illustration and Visual Communication Design Debes Intervenir Poster by EDUARDO WALLES You must intervene is the result effort to take care of all the staff, regardless of range in the work areas. In this campaign, the tApp team seeks to represent the correct and incorrect use of tools and facilities, underlining as an axis the moment when a bad use is about to go very wrong. The comic graphic style turned out to be the approach channel towards the workers to generate a friendly, peaceful and pleasant bond. The campaign had an internal approval; raising awareness among employees and reducing the number of incidents. The phrase became a conventional instruction.