Handprints, Snowflakes and Playdates At school, Penelopeâ€™s teacher encourages the class to play with someone new at recess so that they can see that minds, like handprints and snowflakes, are one of a kind. Penelope chooses Eric and they have so much fun she invites him over for a play-date. Before he arrives, Penelopeâ€™s Mom tells her that Ericâ€™s mind is called â€śon the spectrum,â€ť and so his unique preferences might be different from the ones sheâ€™s used to. To prepare, they practice using quiet voices, listening with their eyes, and being flexible. As their play-date unfolds, Penelope and Eric show readers the many ways that families can embrace neuro-diversity.