Using only very simply drawn figures and changing the color field for "interior" shots to white on solid black, Schwarz conveys Henry’s simple outer and rather more complex inner worlds with a visual boldness that amplifies the exhilaration of his Cartesian epiphany. Henry will be a hero, and not just to readers of a philosophical feather. Small bird, big thoughts. Greatness achieved.
—Kirkus Reviews (starred review)
A fun, well-illustrated look at how standing up for yourself can be scary but rewarding.
—School Library Journal
The layout and design are stylish and witty…youngsters may find this an occasion, with adult prompting, to consider the book’s messages, and they will be amused by the witty art.
—Bulletin of the Center for Children’s Books