The 2nd edition of this very popular Training Manual provides comprehensive instruction in implementing the Picture Exchange Communication System. As of 2010, over 300,000 copies of this manual are in print in multiple languages across the world. The Training Manual begins with a description of the Pyramid Approach to Education, which is the foundation for creating all PECS lessons. A detailed chapter on functional communication follows. Each of the 6 training phases is described according to rationale, training steps, frequently asked questions, helpful hints, and sample data sheets.