This novel was the basis for The Towering Inferno. The main story is the same but there was more action included in the movie.
The Tower, by Richard Martin Stern. (Book – 1973)
The book opens with a great description of skyscrapers and how they live with complex systems within. The more complex and large, the more vulnerable to attack.
I think the movie was better, as more action is shown. I found it hard to visualise the action from the text; but perhaps it would have been easier without having seen the film.