Matsuya Ginza invites visitors to a place where eggs are gigantic and cakes are big enough to serve many guests. This is the world of Guri and Gura, field mice twins created by children's book writer Rieko Nakagawa and illustrated by her sister Yuriko Yamawaki. The first "Guri and Gura" picture book debuted in 1963, after which the series became so popular it was translated into nine languages.

The exhibition presents 170 drawings and paintings from "Guri and Gura's" 50-year history and includes original watercolors as well as international versions of some of the books. The exhibition space has also been created by designer Makoto Koizumi, who has set it up to appear as an "Imaginary Forest of Picture Books"; Feb. 27-March 10.

Matsuya Ginza; 3-6-1 Ginza, Chuo-ku, Tokyo. Ginza Stn. 10 a.m.-8 p.m. ¥1,000. 03-3567-1211; www.asahi.com/event/gurigura50