The next day I went to my first class. I was in tracksuits, because I liked to be casually dressed the most. I rang the doorbell of the apartment. A woman of about 35 years old, with a beautiful appearance and a pleasant voice answered the phone. I introduced myself, and she invited me in. The apartment was huge and well decorated. She ushered me into a room with a laptop on the table, a mountain of economics books and a corner leather sofa. She offered me juice and then started the first class.