(2) PS Translated by David Boyd. Twins Chirri and Chirra explore new territory in their fourth gentle adventure available in English. Creatures have tunneled into the basement of their cozy cottage, so the girls hop on their bikes and follow the mysterious intruders (revealed to be badger youngsters) into the tunnel. Doi has created a compelling story with almost no tension, relying on intriguing world-building. Glowing, soft-edged pictures repay a leisurely search for details.

Reviewer: Sarah Ellis | Horn Book Magazine Issue: September, 2019

(2) PS Translated by Yuki Kaneko. In their third adventure, the titular rosy-cheeked cyclists head out into a winter landscape. They enter a magical, animal-filled ice world, visit a hot spring, and join a bear family in an igloo. What gives this dreamy, serene story energy are the details. Doi's pictures are made for poring over and creating one's own narrative. This Japanese import is a reminder of picture books' interactive nature.

Reviewer: Sarah Ellis | Horn Book Magazine Issue: January, 2018

(2) PS Translated by Yuki Kaneko. In their second book, the two rosy-cheeked, dot-eyed girls head off on their bikes. As they ride into a meadow, they shrink until the clover arches over them like trees and bumblebees are the size of their heads. As the benign, welcoming creatures they meet invite the girls inside their homes, so Doi's gentle, grainy illustrations invite readers into this sweet miniature world.

Reviewer: Sarah Ellis | Horn Book Magazine Issue: November, 2017

(1) PS Translated by Yuki Kaneko. In this Japanese import, Chirri and Chirra take a day-long bike ride through a pastoral world. Amenities appear just when needed; ultimately, the sisters arrive at a forest hotel in time for an animal symphony concert. Adult humans are absent, leaving room for the fox waiter, the pig flautist, and all the other animals of this peaceable kingdom. Crayon/pastel illustrations in gentle, saturated colors capture the girls' summer idyll.

Reviewer: Sarah Ellis | Horn Book Magazine Issue: January, 2017