I have worked for or contracted with some of the most high-profile training companies in the city of Chicago. Most of the time, I worked as an Adobe Certified Instructor. But I also had the chance to teach other things, like 3D animation and presentation design. What follows is a guestimate of the percentage (%) of my students that received training in the applications I taught, as in 90% of them came specifically for Photoshop training. Pretty much everyone I taught in Photoshop returned to take further instruction from me in other Adobe apps.