Enroll in a college or art school to learn digital design. You'll need to pick the area that you're interested in most, or complete a comprehensive program to learn all areas of digital design.
Take separate courses for digital design. These may be available in your community for free, or for a fee.
Download tutorials to aid in your study of digital design. Many of the programs that digital artists use offer tutorials to enhance your knowledge of the art. Such tutorials are available from Adobe, Macromedia, Correl, and many others.
Find employment as an intern or an aid where the use of digital design is highly used. Some places you can look for this type of employment are in printing and design shops, magazines, or from other professional web and system design businesses.
Hire a private tutor to assist you with your study of digital design. Many times former students or graduate students will offer tutoring services in their spare time, or a list of tutors may be available through your art department.