1 volume + Compact disc Machine generated contents note: Unit 1 Human nature -- Unit 2 Time for a change -- Unit 3 No man is an island -- Unit 4 Scientific discovery -- Unit 5 Striving to achieve -- Test One -- Unit 6 Powers of persuasion -- Unit 7 Ways and means -- Unit 8 State control -- Unit 9 Natural history -- Unit 10 Rocket science -- Test Two -- Unit 11 Progress -- Unit 12 The latest thing -- Unit 13 Urban jungle -- Unit 14 Tackling issues -- Unit 15 This Earth -- Test Three -- Unit 16 Energy efficient -- Unit 17 Getting down to business -- Unit 18 Law enforcement -- Unit 19 The media -- Unit 20 A matter of taste -- Test Four -- Unit 21 Learning vocabulary -- Unit 22 IELTS Reading -- Unit 23 IELTS Writing -- Unit 24 IELTS Listening -- Unit 25 IELTS Speaking -- Test Five