Akira Ikegami 3-Book Set * 10 Books That Changed the World * A Book That Makes the World's Religions Fun to Understand * Professor Akira Ikegami's Tokyo Tech Lecture: World Edition - Giving You a "World Map of Knowledge" to Fight in This Society Only the Tokyo Tech book has a clear cover. There is a slight crease. The other two books also have little signs of use. All books have been stored on a bookshelf after purchase.