My child wasn't really interested in books in the first year of life. He found them exciting to sink his teeth into. But the pictures and stories didn't interest him.
He will be 2 in the spring and he has been interested in books for about half a year. But I have to read him the same books over and over again. I know that repetition is important for children. And we also have a whole shelf of different children's books. But he always chooses the same ones for weeks. Is it the same with your toddlers?