This sheet is one of a series of sheets of pictograms – word games comprised of tiny sketches and words or parts of words that can de deciphered to give a different word or a phrase.

The majority of the pictographs on this sheet are made up of animals and plants. Some involve only a picture, for example a female figure with a sail is fortuna (“fortune”). In most cases the picture is preceded or followed by a few letters, as a net followed by the letters nuta = retenuta (rete is Italian for “net”).

Leonardo has written a key under each picture in characteristic mirror writing which reads from right to left.