A book by Yuval Noah Harari that examines the future of humanity. - Title: 21 Lessons - Author: Yuval Noah Harari - Price: 2400 yen - Published: 2019 - Publisher: Kawade Shobo Shinsha Paperback edition I've only read it once. There is some rubbing on the cover from storage, but it's generally in good condition, so there should be no problem reading it.