The plot is about reviving the postal system of Ankh-Morpork. The famous hypothetical city, governed by the tyrant, Lord Vetinari.
But the twist is, that the person assigned to the job, is no government official, but a crook, a fraud, a trickster, Moist Lipwig. Moist Lipwig is the person with many names, many appearances, many personalities. He is hanged to death, for unforgivable crimes he has done. He wakes up wondering, how heaven or hell will be?, only to find he is still alive in front of Lord Vetinari. This is when, Lord Vetinari, gives him choice either to be hanged again, this time to death, or accept to the post of Postmaster, to revive the postal system.
The story is full of modern day things with only different names. Golems for robots, Clacks for Telegraph system, and so on.
Besides the innovative style of Terry, it is simple story of fraudster turning into good man, only to find a bigger fraudster.
The story is full of drama, emotion, conspiracies,…………………….
I will recommend it as a leisure time reading.