The books are compelling and distictive, and the first of them, Flowers over the Inferno, has been made into a TV series by RAI, the Italian national network and it's available with English subtitles (so far onlly on the Australian SBS streaming network, accessible outside Australia with a VPN). The series is very effective in translating the human interactions, especially among the schoolchildren who are a big part of the first novel, and betweenn Battaglia and her young and very attractive assistant Marini (a young Sicilian whose adjustment to the snowy north is a source of some comedy, especially at the beginning).
The crime plots of all three novels are original in concept and in resolution, with the intelligence and wit of Battaglia and the growing confidence of Marini.
It's difficult to describe either version of the series without giving too much away, but I can say that the stories are compellingly told in both media, the novel and the series, and offer an unusual, distinctive experience to both reader and viewer.