The final 6 books have been numbered out of main continuity, because the labelled 40th is the first children's novel in the series, and 41-45 are a miniseries, also for children. However, the file metadata is all in release order, so if viewed in Explorer they will order themselves by release.
"Discworld is a comic fantasy book series written by the English author Terry Pratchett, set on the Discworld, a flat planet balanced on the backs of four elephants which in turn stand on the back of a giant turtle. The series began in 1983 with The Colour of Magic and continued until the final novel The Shepherd's Crown was published in 2015, following Pratchett's death. The books frequently parody or take inspiration from J. R. R. Tolkien, Robert E. Howard, H. P. Lovecraft, Charles Dickens and William Shakespeare, as well as mythology, folklore and fairy tales, often using them for satirical parallels with cultural, political and scientific issues."
Hell yeah, thanks for sharing! I've just been listening through the nights watch series at work the last few weeks as it is