I have a penchant for Italian detectives. My favourite (when Michael Dibdin is on his best form) is Aurelio Zen, closely followed by Donna Leon's Guido Brunetti. Leon's not quite up to the standard of Dibdin at his best, but she's more consistent. Recently I've taken to reading crime novels in translation and my latest discovery is Andrea Camilleri's Inspector Salvo Montalbano. "The Shape of Water" is the first book in the series.