It depends on which language course you choose. All our courses last 4 weeks, except the semi-intensive course for 8 weeks and the weekend course for 12 weeks.
Our course system is based on the Common European Framework of Reference for Languages and is divided into 12 course levels (A1 (A1.1 + A1.2), A2 (A2.1 + A2.2), B1 (B1.1 + B1.2), B2 (B2.1 + B2.2), C1 (C1.1 + C1.2) and C2 (C2.1 + C2.2). It means that you will learn for example level A1.1 in a 4-weeks intensive course, in a 8-weeks semi-intensive course or in a 12-weeks weekend course.