Fasi-Gessner was from a Swiss family of artists and was best known for his compositions of flowers and portraits. His talent must have been evident quite early in his career as he is recorded as participating in exhibitions in Zurich from 1811 when he would have been only fifteen. He is mentioned in an April 1864 issue of the American publication Harper's Weekly as having donated some of his watercolors of flower to the Metropolitan Sanitary Fair of Philadelphia. It seems there was a community descendant of Swiss forebears in the region and this is perhaps how he achieved recognition across the Atlantic.
Many of Fasi-Gessner's portraits were turned into lithographs by the Swiss printmaker Karl-Joseph Brodtmann (1787-1862).
The flowers drawn in this sketchbook are rendered with a naturalist's attention to accuracy and precision and their placement on the page and use of intense color demonstrates the artist's aesthetic sensitivity.