Teaches really. Right. Beautifully. That's interesting. Not easy, but it is not difficult. Exciting job. Understandable even to an adult!
Guide, you will learn tested and "Approved" by 7 issues of college students in St. Petersburg and students of the school. With this guide everyone without problems students have passed the exams and received certificates of PC users.
Now for the practical exercises. In some of them the last paragraph of the job says "send a teacher to check." If you want to check the correct execution of the exercise, you can send them, I have no problem to check them and send you an answer.
All consultations are free of charge for the study program.