-THE STYLE AND COVERAGE IS SUITED TO THE INDIVIDUAL LEARNER AS WELL AS BEING A SOURCE OF RICH TEACHING MATERIAL FOR THE TEACHER -THIS SERIES TAKES INTO ACCOUNT THE PROGRESS A STUDENT IS MAKING AND OFFERS THE RIGHT MIX OF EXPLANATION AND PRACTICE AT THE RIGHT TIME -EACH LEVEL COMES WITH A COMPLIMENTARY CD ROM WITH OPPORTUNITIES TO PLAY A PART IN DIALOGUES, INTERACT IN FINDING AND CORRECTING MISTAKES, AND TAKE TESTS TO EVALUATE PROGRESS