Powerhouse's topic-based course structure is flexible, clear and straightforward. With every lesson spread on a double page, teachers can follow Powerhouse in sequence or dip into it at any point. The dynamic material covers top business stories, theories and gurus, and comes from highly original authentic sources. Features systematic work on vocabulary, social skills and e-mail. Includes a Grammar Reference and Practice section in the Course Book and extra self-study activities in the Study Book. sakriti opis