This is one of those rare kids' books that actually does what it promises: it gives young children a simple, memorable framework for understanding their emotions. The color metaphor is intuitive, the Monster is endearing, and the little girl guide is patient and kind—great modeling.

The pop-up edition is a genuine treat (Kirkus called the illustrations 'downright splendid'), and parents report reading it nightly without losing their minds, which is high praise. Teachers and therapists love it because it works—kids genuinely start using the color language to express themselves.

It's not trying to be profound or literary; it's trying to help a 4-year-old say 'I feel red and black at the same time' instead of throwing a block. And it succeeds. A must-have for the emotional toolkit bookshelf.