Delayed copying is a very simple method of studying a foreign language where the learner reads a small amount of text, holds it in memory for a moment, and tries to write it exactly as it was written. The key is to do this with as long a piece of text as the learner can accurately remember.
Beginners should do the exercises in the section Beginner. Students who have studied a long time might want to try Intermediate. For students who have studied English for many years and have good memories, Advanced is best.