Fourth edition of the best-selling Cambridge English: Advanced (CAE) course, updated to prepare for the 2015 revised exam. This Teacher's Book includes teaching notes, answer key and background information corresponding to the 25 units of the Objective Advanced Fourth edition Student's Book. The Teacher's Resources CD-ROM includes 12 progress tests and unit-by-unit wordlists both with and without definitions. Complete Cambridge English: Advanced practice tests are available online.