I'm a new Terry Pratchett fan. There is 5 books in total for this Discworld series. There are so many many books which is comforting because I like his books. Family members are big fans of his and I am late catching on but glad discovered him for myself. My sister says this series was good to begin with. I am 36, the reading age for these are 9-11. Nearly finished first book, (don't always have good concentration) easy to read and I imagine it all and despite my concentration being poor sometimes I just want to keep reading. That says alot in my book.