Originally published in two parts as: 101 unuseless Japanese inventions, 1995 and 99 more unuseless Japanese inventions, 1997.
Bumper book of unuseless Japanese inventions : the art of Chindogu by Kenji Kawakami. ISBN 0007192886. Published by HarperCollinsPublishers in 2004. Publication and catalogue information, links to buy online and reader comments.