The young adult books: Although aimed at a younger audience, The Amazing Maurice and His Educated Rodents and the Tiffany Aching series can be enjoyed by all ages. The former is a Pied Piper retelling of sorts, and the latter is about a young witch-in-training. These books are also a rare exception to the ‘no chapters’ Discworld rule. However, if you plan to start with the Tiffany Aching series, I would strongly recommend starting with the Witches series first as the two are linked in some ways. It will also make what happens in The Shepherd’s Crown – both the last Tiffany Aching book and the last ever published Discworld novel – a lot more poignant.
