Level A2-B1 and beyond Fusion offers an integrated approach to learning vocabulary and grammar. The units focus on the recognition, acquisition and reinforcement of vocabulary while linking the language introduced in each topic area to related areas of grammar. The organisation and selection of topics is based on the 14 Specific Notions of the Common European Framework of Reference. Fusion can be used in the classroom as a self-contained vocabulary development and grammar revision course, as a supplement to a main course book, as a source of revision and practice material, or for self-study.