As head of a monastery during the Middle Ages, you compete against the other monasteries to become the one with the most wonderful library. In order to assemble your collection, you need to acquire the necessary pigments for decorative lettering, hire the best scribes, and reproduce the most precious works.
You have a limited amount of gold at your disposal to accomplish this. The trick is to part with certain items from your collection at just the right time, and to pay the lowest price for enviable rarities. Finally, staying on good terms with the bishop means that your can use his influence to make your library look that much more splendid.