Book excerpt: Semantic roles have continued to intrigue linguists for more than four decades now, starting with determining their kind and number, with their morphological expression, and with their interaction with argument structure and syntax. The focus in this volume is on typological and historical issues. The papers focus on the cross-linguistic identification of semantic-role equivalents, on the regularity of, and exceptions concerning change and grammaticalization in semantic roles, the variation of encoding the roles of direction and experiencer in specific languages, presenting evidence for identifying a new semantic role of speech addressee in Caucasian languages, on semantic roles in word formation, and finally a cross-linguistic comparison of the functions and the grammaticalization of the ethical dative in some Indo-European languages. The book will be of interest to anyone involved with case and semantic roles, with the syntax-semantics interface, and with semantic change and grammaticalization.