I can catch up with this program my missing school subject English. It is clearly designed and you can also understand the lessons well. The exercises are carried out, even though the questions of reading activities are not always made very clear. Good is that you can also interrupt the program and return to it later during an exercise. I would recommend this program each student for strengthening or refresh their knowledge of English. But I would recommend that program to use on a computer with a large screen and proper keyboard. I come for clarity so better clear.