The book “21 Lessons of 21st century” is written by? A) George Friedman B) Yuval Noah Harari C) Stephen Hawken D) Faras Al Khateeb Related MCQs: ‘The Lessons of History’ is a famous book by? The book “Friends not Master” was written by: Gandhara Civilization existed in which side of Pakistan from 2nd century to 5th century ..? ……. was introduced at the beginning of the century by Ferdinand de Saussure (1957-1913) as a deliberate reaction to the historically oriented linguistics of the 19th century?