The Ankh-Morpork Post Office is featured in Going Postal, one of Terry Pratchett's Discworld series of books and the 2007 Discworld Diary, based on previous mentions in Men at Arms and the 1998 diary. The Post Office, which was once a vibrant, relevant institution complete with gleaming wooden counters and polished brass, staffed by postmen in spiffy blue uniforms, languished and almost died, according to Mr Tolliver Groat (Junior Postman, later Senior Postman and Postal Inspector), when postmen began to leave half a sack of post behind in order to get home on time. The next day they left another half sack, reasoning they could do it on their day off, by which point too much mail had built up and so much was still left behind. However this was only a minor part of the problem.