Vitus is the star of a book written by Martina Goernemann. The book is called "Sourdough, Happiness in four days".The life of the sourdough is explained in the book. Vitus was baptised in a cloister near Munich in Germany while he traveled through Europe and the USA. Where painter John Walley immortalised him on a incredible painting. This sourdough is part of the sourdough library collection.