M.Y.M. Kau & Laifong Leung 
Writings: v. 2: January 1956-December 1957 [PDF ebook] 

This collection of the correspondence of Mao Zedong during the period 1956 to 1957 explores the question of legitimatizing the leadership of the CCP, the pace of the socialist transformation of China’s economy, and the issue of the divergence of ideological opinion over the strategy of revolution.