This is a culmination of the texts I recommend as far as my own views are concerned. This list will be periodically updated. Please note that this isn’t the whole of everything that’s ever informed my political opinion, it’s just texts I recommend. All the texts here are linked to, and (with one exception) are all free to read.
Anarchist Texts
Anarchism and the Black Revolution* by Lorenzo Kom’boa Ervin
Anarcho-Syndicalism: Theory and Practice by Rudolf Rocker
As Black As Resistance by Zoe Tsamudi & William C. Anderson
Beyond Nationalism, But Not Without It by Ashanti Alston
The Capitalist System by Mikhail Bakunin
The Conquest of Bread (AKA The Bread Book) by Peter Kropotkin
Homage to Catalonia by George Orwell
The Principles of Syndicalism by Tom Brown
The Soul of Man Under Socialism by Oscar Wilde
Marxist Texts
Critique of the Gotha Programme by Karl Marx
Fascism: What It Is and How To Fight It by Leon Trotsky
In Memory of Norman Bethune by Mao Zedong
Intercommunalism by Huey P. Newton
The Mass Strike, The Political Party & The Trade Unions by Rosa Luxemburg
Neo-Colonialism: The Last Stage of Imperialism by Kwame Nkrumah
On Physical Education by Mao Zedong
The Revolution Is Not A Party Affair by Otto Rühle
The State and Revolution by Vladimir Lenin
OTHER TEXTS
Letter from a Birmingham Jail by Martin Luther King, Jr.
*The TAL link takes you to the 1990s edition of the book. Ervin more recently put out an updated version of his book through Pluto Press, which you should go buy to support him.