Excellent research and study aid. Each item is punctiliously cross-referenced to its origin in Freud's writings and within each definition the different terms used are cross-referenced in a format that is easy to follow without being intrusive to the eye. Despite its French authors, this work is not Lacanian, thus it lacks definitions for some psychoanalytic terms (e.g. signifier) which contemporary analysts must seek elsewhere, for instance in Dylan Evans' book. But its relevance to developing psychoanalytic research and practice remains incontrovertible to all Freudians, post- or not.