Here is a remarkable collection of virtually every opera libretto printed in Venice from 1637 to 1769. Assembled in the eighteenth century following Antonio Groppo's chronology, the set includes 1286 librettos bound in 117 volumes. Catalog entries give full transcription of title page, summary of contents, and list of all personnel for each opera. It features five appendixes and seventeen indexes that provides access to titles, artists, dedicatees, roles, and many other aspects of production.