Passing an international English exam is always a challenge – test takers who manage to make a success story out of their experience typically invest in thoughtful and adequate preparation. People rarely choose to prepare for a high level exam such as C1 or C2 on their own, especially if the degree is required for professional or academic purposes; leaving such an important outcome to self-evaluation and self-preparation is risky and may produce bad results. Therefore, choosing private tutoring or a group course is often a good solution.