Engels' 1884 book focusing on early human history, following the disintegration of the primitive community and the emergence of a class society based on private property. Engels looks into the origin and essence of the state, and concludes it is bound to wither away leaving a classless society.
Short pamphlet looking at anarchist and socialist views of the state against the background of the conflict between Stalinists and anarchists in the Spanish revolution.
Theses on the Spanish Civil War and the revolutionary situation created on July 19, 1936 - BALANCE (Agustín Guillamón)
A 2001 text summarizing the results of the research carried out by Agustín Guillamón for the Spanish journal, BALANCE, concerning the lessons of the Spanish Civil War in Catalonia, denying the existence of “dual power” in Catalonia in 1936, discussing the struggles of the CNT rank and file against militarization and in favor of socialization, emphasizing the revolutionary potential of the ubiquitous committees and their neutralization and eventual destruction due to a lack of coordination and centralization, and claiming that the proletarian revolution requires the destruction of the capitalist state and the creation of a centralized workers power based on workers councils.
Good article from 1987 explaining that the use of the term "dictatorship of the proletariat" in German by Marx and Engels is not the same as the English word "dictatorship" and does not conflict with democracy.