Photoshop is by far the most widely used graphic design program. Nevertheless, there are few people that can be considered as its expert users. This program is a virtual course on how to use Photoshop. It takes advantage of all the computing resources currently available. First of all, it has a nice interactive interface that allows you to navigate through the course in an easy way by clicking on the titles of the sections or by searching any desired topic. The program has interactive texts with links that, when clicked, show graphically what is explained in the text. You can increase or decrease the font size to make reading easier. Also, it is possible to print any of the sections for you to read them when you are away from your computer. The program has also audio and video demonstrations that show in detail each described process. Maybe these are one of the weak points of the program, since the voice is rather dull and can get boring after a while.
In the demo version, only the lessons comprising the Concepts chapter are available. If you like what you see and want to have access to the whole material, then you will need to purchase the full version, which is rather affordable.