The indexing of audiovisuals, subject of this investigation, is based on the indexing policy of one Library Information Unit, supported by the characteristics and goals of this Information Unit and on the identification of clients. The need to evaluate videos of arts’ indexing in an art and multimedia university library and the searching of methodologies for vocabulary control has led to this research. For this, it was selected a sample of videos of arts in the following genres: documentaries, movies and animated videoart. After, it was performed a search in a database to collect terms that were used for the indexing of each video. In addition, it was
presented the synopsis of selected videos with the terms attributed by indexers for the analysis of three judges, professors of art history. Fifty terms were evaluated, and the judges added new fifty one descriptors and nineteen names of artists. From this, thirteen terms were considered
unsuitable for the items indexed; one term was considered inappropriate for the area terminology; from the new terms added, thirty-six refer to geographical, chronological or historical modifiers. A handbook was created to guide the indexing and control the vocabulary.