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
Sandro Botticelli Botticelli himself, standing at the front on the right. The painting was celebrated for the variety of the angles from which the faces are painted, and of their expressions. A large fresco for the customs house of Florence, that is now lost, depicted the execution by hanging of the leaders of the Pazzi conspiracy of 1478 against the Medici. It was a Florentine custom to humiliate traitors in this way. This was Botticelli's first major fresco commission (apart from the abortive Pisa excursion), and may have led to his summons to Rome. The figure of Francesco Salviati, Archbishop of Pisa