Born in Tokyo, Japan, Kaya Doi graduated with a degree in design from Tokyo Zokei University. She got her start in picture books by attending the Atosaki Juku Workshop, held at a Tokyo bookshop specializing in children's books. Since then she has created many picture books featuring her delicate color-pencil drawings. She lives in Chiba Prefecture and maintains a strong interest in environmental and animal welfare issues. Since the earthquake of 2011 she has been active in recovery and shelter efforts for abandoned pets.David Boyd holds a master’s degree from the University of Tokyo and is currently a Ph.D. candidate at Princeton University. His translations have appeared in Monkey Business International, Granta, and Words Without Borders, among other publications.

"Dring-dring, dring-dring!" Chirri and Chirra's bicycle bells summon readers on another serene adventure. Doi employs her characteristic smudgy style, rounded, flowing shapes surrounded by soft borders of white that reinforce the cozy feel." —Kirkus Reviews