To Liu Ding[1]

(September 7, 1936)

In my previous telegram I asked you to purchase military books. Have you bought them yet? The Red Army Academy now urgently needs them. Please write quickly to obtain catalogues from bookstores in Nanjing and Beiping that distribute military books, select the important ones and buy them, and also send the catalogues.

[1] This is the main content of Mao Zedong’s telegram to Liu Ding.