This monograph, the first English book available on “modernization science,” interprets its concepts, methodologies, general theories, first and second modernization, six level-specific, six field-specific and three sector-specific modernizations, modernization policy and evaluation, and the principles and methods of national development since the 18th century. It provides clear, systematic, up-to-date information on this new discipline with more than 173 figures and 265 tables, and covers 131 countries and 97% of the global population.