The original Callan programme consists of 12 stages, each corresponding to an official Callan book. This granular progression allows very precise tracking of your advancement.
Stages 1-2 cover A1, stages 3-4 cover A2, stages 5-7 cover B1, stages 8-9 cover B2, and stages 10-12 cover C1. Each stage lasts approximately 6 to 8 weeks.
This version is ideal for learners who prefer step-by-step progression with frequent, measurable milestones.
