Venus on the Half-Shell assumed that Vonnegut wrote the book. This problem was solved by the book being reprinted under Farmer's by-line. A common element to this novel is the origin of many of the characters' and locations' names. Farmer "put in a lot of references to literature and fictional authors... Most of the alien names in Venus were formed by transposing the letters of English or non-English words." The title and paperback cover art are a reference to an Italian Renaissance tempera painting by Sandro Botticelli, "The Birth of Venus", which depicts the birth of the goddess Venus as her rising from the
Portrait of a Man with a Roman Medal a lake landscape: Memling was one of the first painters to use natural landscapes for backgrounds of portraits (instead of the traditional black one), influencing later Renaissance artists such as Sandro Botticelli and Pietro Perugino. The identity of the subject is unknown. It has been supposed that he could be one of the numerous Italians living at the time in Antwerp or Bruges, who often commissioned artworks to local painters. It has been variously identified as Bernardo Bembo, or with the Florentine artist Niccolò di Forzore Spinelli, who died in Lyon, where the painting was in the early 19th century.