Book excerpt: M. N. Roy, the founder of the Communist Party of India, has been described by Robert C. North as ranking "with Lenin and Mao Tse-tung." This book, focusing on the career of Roy, traces the development of communism and nationalism in India from 1920 to 1939. Originally published in 1971. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.