How Callan Method Stages compare to CEFR* levels and University of Cambridge General English exams * Common European Framework of Reference It is difficult to compare the Callan Method books directly with the CEFR levels and Cambridge exams, but below is an approximate guide Callan Method Stages CEFR Levels Cambridge Exams C2 CPE C2 C1 CAE C2 B2 FCE B1 PET A2 B1 KET B1 A1 10 11 12