This is the third edition of the Callan Method student textbook, covering the content of Stages 1 and 2. - Title: Callan Method Student's Book Stage 1 & 2 - Stage: Stage 1: Lessons 1-12 - Stage: Stage 2: Lessons 13-27 - Edition: Third Edition Thank you for looking. I used to use this, but I no longer need it, so I'm selling it. The condition isn't great, but it's perfectly usable for studying.