Taxonomic literature can be divided into Pre-Linnaean and Post-Linnaean literature, with Post-Linnaean literature being those works published after Carl Linnaeus developed his famous naming and classification schema, binomial nomenclature. This week’s book of the week, Historia Vermium, is an interesting example of a Pre-Linnaean text. The Smithsonian’s copy, pictured here, is one of only two copies in the Western Hemisphere, according to OCLC, and one of only twelve in the world. The author, Joachim Jung, was known chiefly as a mathematician and astronomer, being considered on par with the likes of Galileo. He also focused many of his studies on natural history, particularly in the realm of botany. Historia Vermium, like many of Jung’s works, was published posthumously.