I do not place the computer into the glare with a lot because of the glare causes eye damage and Place the edge of the screen on your computer matches the level of the eyes to look up and make eye contact with a perpendicular angle. Adjust the screen to the slightly lower than eye level to see the screen comfortably. The seat away from the machine for about 2-2.5 feet in trunk seat position, the back plate fit the backrest Chair. Place the elbow, are in line with the level of printing. Place the feet fit on the ground. Within sight while using the computer as a stage.