Anyone read the book, by Anthony Burgess?

The movie. In the book, you have to imagine the scene where they strip that chick naked, then gang rape her to the tune of "Singing In The Rain". And if you happen to have just seen a few minutes of "Spy" on TV, there's a very real danger of not being able to think of any woman other than Melissa McCarthy, when you're fantasizing about being Alex in this same scene

I own the book, but haven't got around to reading it yet. I know there's some extra scenes and the ending is different. Apparently the film is pretty faithful so you're probably not missing much.

For one, the girl almost raped by the gang was only 10yo in the book.

Same with the girls from the bookshop Alex had sex with. In the book, they were 10yo girls he drugged and raped.

Kubrick rightfully changed all those characters to be older (not that he would have been allowed to use pre-teen actresses even if he wanted) and the bookstore girls sex scene was changed to be consensual.

Yes, I've read it several times. It's actually a little darker than the movie. The two girls Alex brings back to his place are 14 and he rapes them. The Droogs do a lot more vandalism and damage around the town. The language is amazing, however. It's an entertaining read from start to finish (I recommend skipping the last chapter that shows Alex as a much older person with children of his own).

The book is excellent, but this is one of those rare cases where the film is even greater than the book from which it was adapted. It is hard to conjure up pictures, movements, and sounds that can compete with those of the reader of Burgess's A Clockwork Orange, but Kubrick manages to do just that. Kubrick stayed rather faithful to the source material, which was a step in the right direction. However, he transcended the book through his use of color, architecture, synthesized music, and the performances he culled from both the leading and supporting cast members.

It is good - I'd definitely recommend it if you're a clockwork orange fan. It's very much like the movie and the character Alex is the same, but you get a lot more of him and his sense of humor.

equally good IMO.

the book is much darker and also has an extra chapter at the end;
more or less everything else is shown in the film.
there is more fun slang in the book so i'd say that alone is worth a read.