Key features: plenty of interactive activities for students-answers can be saved, printed, and so on, a structure that reflects the chapter sequence and focus of each of the books, clear instructions and guidance for students, activities related to the theme/genre/skill of each chapter, consolidation and self-assessment as well as exemplars and model answers, fun stand-alone tasks and challenges, state-of-the-art graphics and design, a low demand on computer hardware, an electronic version of Heinemann English Links Three.