A Clockwork Orange.

A dystopian novella written by Anthony Burgess back in 1962 that would become internationally known thanks to the film by the same title directed by Stanley Kubrick. Written in an invented language called Nadsat (derived from Russian), a young fellow narrates his adventures in a dystopian near-future society where decent folks work exhausting monotonous jobs, live in large spiritless apartment complexes and watch TV all day while their kids join street gangs and terrorize their innocent victims for fun. Full of slang and violence (or, as the author calls it, "ultraviolence"), but certainly entertaining and even thought-provoking.

Technical description:
Title: A Clockwork Orange.
Author: Anthony Burgess.
Edition: ebook file in EPUB format