This book compiled many works written in Cao Bang during the beginning of 1940s with the purpose of propagating revolution and encouraging struggling spirit of Tay people as well as the whole population. The works are divided into 2 following stages: - Before 1930: most authors are local officials, focusing on describe Vietnam under French domination. - After 1930: the masses, the communist soldier and the cadre here produced patriotic verses to boost up the revolution