Are you looking for a course or tutorials about the management of programs such as Illustrator and Photoshop, and digital prepress?
We found tons in the network, unfortunately, it's hard to find exactly the topic we are looking for. Its so difficult to find good digital prepress tutorials, this is my page intended for.
Designers such as prepress operators need to know how to make trapping, manual or automatic, abundances, color management, management on direct tints (Pantone, spot colors) in both programs as Corel, Illustrator, Photoshop, Freehand etc, calibration of photos for a good printing, color retouching, mixing images, etc., so many topics that are difficult to find exactly what you need.
The idea is to go loading small videos (no audio) on these issues, to make this page a good help for everyone.
If you want some specific topic don't hesitate to contact me, I will be happy to develop a tutorial help you dispel the doubts.