What Is to Be Done? by Vladimir Lenin is a seminal work that outlines the revolutionary strategy and organizational principles for the Russian Social Democratic Labour Party. Written in 1902, this influential text serves as a cornerstone in the development of Leninist thought. Lenin addresses the challenges facing the working class movement, particularly the lack of revolutionary consciousness among the proletariat. He argues for the necessity of a vanguard party composed of professional revolutionaries who possess the political knowledge to guide the working class towards socialist revolution.

This rich and magisterial work traces Palestine's millennia-old heritage, uncovering cultures and societies of astounding depth and complexity that stretch back to the very beginnings of recorded history. 

Reform or Revolution, also titled Social Reform or Revolution?, is an 1899 pamphlet by Polish-German Marxist theorist Rosa Luxemburg, in which she argues that trade unions, reformist political parties, and the expansion of social democracy could not create a socialist society as Eduard Bernstein, among others, argued. She contends from a historical materialist perspective that capitalism is economically unsustainable and will eventually collapse and that a revolution is necessary to transform capitalism into socialism.

Imperialism: The Final Stage of Capitalism by Vladimir Lenin is a foundational Marxist text that explores the economic and political dynamics of imperialism in the early 20th century. Originally published in 1917, this work was a response to the global geopolitical landscape of the time and sought to analyze the nature of imperialism as the highest stage of capitalist development. Lenin argues that imperialism represents a new and advanced form of capitalism characterized by the domination of finance capital.

The Communist Manifesto (1848), Marx and Engels' revolutionary summons to the working classes, is one of the most important and influential political theories ever formulated. After four years of collaboration the authors produced this incisive account of their idea of Communism, in which they envisage a society without classes, private property or a state. They argue that increasing exploitation of industrial workers will eventually lead to a revolution in which Capitalism is overthrown.