Much better than the movie.
The Enterprise embarks on her most fantastic adventure of all! The planet Nimbus III, a desolate forbidding world, situated in the heart of the Neutral Zone. Nimbus III is the site of an unprecedented attempt at cooperation among the galaxy's three major powers..
On a planet that the three major powers of the galaxy share as a type of United Nations, a prophet has come and rowsed the population. The Enterprise gets involved because of their interest in the the galactic peace, as well as the fact that the prophet is Spock's brother. So begins a quest that will take the Enterprise crew to the core of the Milky Way galaxy and a meeting with...God? The movie sucked, but the book is actually pretty good. Everything is explained better and there is more characterization.
These were given to me by a friend, and I have not read the book.