International Best Selling author and World History professor Yuval Noah Harari's new book 21 Lessons for the 21st Century. His previous books delved into our past (Sapiens) and our future (Homo Deus) while this book takes a hard look at our present. Harari challenges us with 21 different aspect of life from politics to education to technology and more. Harari is always thought provoking and this will not disappoint. Korean edition translated by Jeon Byeong Geun.