Hermetic Library Fellow T Polyphilus reviews We Are in a Book! [Amazon, Bookshop, Publisher, Local Library] by Mo Willems, part of the Elephant & Piggie series.
Children’s picture-book superstar Mo Willems (of bus-driving pigeon fame and confirmed disregard for the “fourth wall”) here entices budding readers into the pleasures of literacy by demonstrating the power of text to exert mind control. You will now think of a banana.
Further significance of the story might be found in the notion that Elephant and Piggie acquire agency by becoming conscious of their own containment in narrative. Their final yea-saying is an aspiration to eternal recurrence.