How does the author use imagery in the novel, This Time Tomorrow?

Imagery:

“She went down the stairs into the train station, and when the train arrived, Alice didn’t even pretend to take out a book and read before she fell asleep with her forehead resting against the scratched, dirty window.”

"Any story could be a comedy or a tragedy, depending on where you ended it. That was the magic, how the same story could be told an infinite number of ways."