Aerografía is a new project that continues -in a way- previous works like Ecografía or Dibujo in verso. In this works, I try to find new possibilities and ways of drawing. In Aerografía, viewer's presence is very important because they´ll activate the work. Some fans connected with sensors will move several pencils hanged to ceiling. Those pencils on movement will make random drawings on a paper disposed on the floor. Thus the wind produced by the viewers next to each fan, will be recorded on the paper.