Objective Proficiency Second edition provides official preparation for the revised 2013 Cambridge English:

Proficiency exam, also known as Certificate of Proficiency in English (CPE). A variety of challenging, lively topics provide thorough training in exam skills and high-level language development. Each unit contains three double-page lessons ensuring flexibility, even pacing and progress. This motivating material is also suitable for high-level students keen to improve their general English. The Workbook with answers provides opportunities for further practice of new language and exam skills either at home or in the classroom. The CD contains the audio material for the Workbook listening tasks.