dojo

Dave Thomas the author of "The Pragmattic Programmer" pioneered the concept of coding katas. In his own words:

How do you get to be a great musician? It helps to know the theory, and to understand the mechanics of your instrument. It helps to have talent. But ultimately, greatness comes practicing; applying the theory over and over again, using feedback to get better every time.
How do you get to be an All-Star sports person? Obviously fitness and talent help. But the great athletes spend hours and hours every day, practicing.