A fully revised edition of Proficiency Masterclass for the new 2013 Cambridge English: Proficiency exam, from an experienced and trusted author team. A fully revised edition of Proficiency Masterclass for the Cambridge English: Proficiency exam, from an experienced and trusted author team. Proficiency Masterclass will motivate students and spur them on to achieve a more sophisticated, natural and accurate use of English. Proficiency Masterclass helps aspirational students to excel in their English while providing suitably challenging, reliable preparation for the 2013 Cambridge English C2 Proficiency exam - in and out of the classroom.