Smallest book published

The smallest printed book measures 0.74 x 0.75 mm (0.0291 x 0.0295 in) and is entitled "Flowers of the four seasons". 250 copies of it were printed by Toppan Printing Co., Ltd Printing Museum (Japan) in Bunkyo, Tokyo, Japan, from April to December 2012 . There are 22 pages in the book. It contains pictures of the flowers of the four seasons, their names in Japanese hiragana, katakana and English transliteration, as well as names of the seasons in Chinese characters and in English. The book is sold as a set together with an enlarged version of it and a magnifying glass. 149 copies of the book are sold as of 11 June 2013.