Liber physiognomiae (Classical Latin: [ˈliːbɛr pʰʏsɪ.ɔŋˈnoːmɪ.ae̯], Ecclesiastical Latin: [ˈliber fizi.oˈɲomi.e]; The Book of Physiognomy) is a work by the Scottish mathematician, philosopher, and scholar Michael Scot concerning physiognomy; the work is also the final book of a trilogy known as the Liber introductorius. The Liber physiognomiae itself is divided into three sections, which deal with various concepts like procreation, generation, dream interpretation, and physiognomy proper.