Guri and Gura (ぐりとぐら, Guri to Gura) is a Japanese series of children's books by writer Rieko Nakagawa and illustrator Yuriko Yamawaki. The protagonists are two anthropomorphic field mice, and the series began in 1963 with the first volume Guri and Gura. The series is published by Fukuinkan Shoten in Japan. Source: Wikipedia (en)