The Little Engine That Could. There have been lots of different editions but this one that Maura is reading to her cousin Charlie is the Complete and Original. The author name is a pseudonym as I looked up the Watty Piper. Lots of discussion about the origin of The Little Engine That Could story in this throughly researched article by Roy E Plotnick- University of Illinois in Chicago
There’s an abridged version and a board book one out in bookstores now and the illustrations have been updated?jazzed up. (Not necessarily for the better in my opinion_ Guess I’m “Old School”.
Charlie loves trains and he likes the flow of language in the story……”I think I can, I think I can, I think I can,” and the rhythm of “I thought I could, I thought I could, I thought I could, I remember my mother reading it to me.