1. Introduction -- 2. The spoken and written academic language (T2K-SWAL) corpus -- 3. Vocabular use in classroom teaching and textbooks -- 4. Grammatical variation among university registers -- 5. The expression of stance in university registers -- 6. Lexical bundles in university teaching and textbooks -- 7. Multi-dimensional patterns of variation among university registers -- 8. Synthesis and future directions -- App. A. Analytical procedures for the linguistic analyses -- App. B. Methodological issues in quantitative vocabulary analyses