This volume undertakes a detailed analysis of the latest generation of learners' dictionaries of English. It assembles the papers delivered at the eponymous symposium held at the University of Erlangen-Nurnberg in April 1997. There are a number of reasons why these dictionaries are of special lexicographic interest: 1. the type of learners' dictionary associated notably with the name of Hornby can look back on a long tradition in British lexicography; 2. competition between various publishers since the late 70s has given crucial impetus to the development of these dictionaries; 3. these new dictionaries are decisively marked by the evaluation of large-scale computer corpora. Central to the volume is the in-depth comparison of four dictionaries published in 1995: OALD5, LDOCE3, COBUILD2, CIDE. The aim is to exemplify specific differences of approach in the four dictionaries from a wide range of viewpoints (definitions, information on valency and collocations, policy on usage examples, political correctness, etc.). A number of articles also enlarge on the history of learners' dictionaries of English, the significance of corpus linguistics for lexicography, and perspectives for the future, notably in connection with the electronic media.