The "Yearbook of Morphology" series, published since 1988, has proven to be a useful support for a contemporary upswing of morphological research, since it contains articles on topics which are central in the current theoretical debates, and which are frequently referred to. Thus it has helped to set a standard for morphological research. In the "Yearbook of Morphology 2003" a large number of articles is devoted to the phenomenon of complex predicates consisting of a verb preceded by a preverb. Such complex predicates exhibit both morphological and syntactic behaviour, and thus form a testing ground for theories of the relation between morphology and syntax. Evidence is presented from a wide variety of languages including Germanic, Romance, Australian, and Uralic languages. A number of articles present historical evidence on the change of preverbal elements into prefixes. Topics such as grammaticalization, constructional idioms, and derivational periphrasis are also discussed. In addition, this title contains articles on morphological parsing, and on the role of paradigmatical relations in analogical change.