Anthem by Ayn Rand
How does the protagonist change from the beginning to the end of the novel? What does this character learn about himself (or herself) and about how the world works?
To begin with, Equality 7 - 2125 began by being a drop in an ocean. He was just a normal person the community wanted him to be. He wasn't and individual, until he started to want to do more and discover more things. For example, when he invented the light bulb, he was thinking out of the box. But when he showed it to the World Council of Scholars, they rejected his idea. They thought of it as a transgression and decided to stick to tortes and candles. As a result, Equality 7 - 2125 ran away into the woods where he transformed his point of view. After running through the woods, he stopped to look at his own reflection for the first time. He was astonished and finally started to see himself as an individual.
I predict further in the book, he will want to change people and convince them about them real self. Additionally, he will finally stand up for the good of all the community, the truth.