The articles in this edited volume represent a broad coverage of areas. They discuss the role and effectiveness of corpora and corpus-linguistic techniques for language teaching but also deal with broader issues such as the relationship between corpora and second language teaching and how the different perspectives of foreign language teachers and applied linguists can be reconciled. A number of concrete examples are given of how authentic corpus material can be used for different learning activities in the classroom. It is also shown how specific learner problems for example in the area of phraseology can be studied on the basis of learner corpora and textbook corpora. On the basis of learner corpora of speech and writing it is further shown that even advanced learners of English are uncertain about stylistic and text type differences.