If you enjoy reading, here are a few suggestions that I found particularly helpful: :)
On Politics, Media, Consensus formation, Political Economy:
Michael Parenti: Democracy for the Few, Against Empire, Face of Imperialism, Inventing Reality, Dirty Truths.
David Harvey: Cosmopolitanism and the Geographies of Freedom; The Enigma of Capital; Marx, Capital, and the Madness of Economic Reason.
Michael Hudson: Killing the Host, J is for Junk Economics.
On rethinking human behavior, moral and cultural attitudes:
Marshall B. Rosenberg: Nonviolent Communication: A Language of Life.
Mao Tse-Tung, Combat Liberalism.
Walter Wink, The Powers That Be.
David Graeber: Debt: The First 5000 Years, The Utopia of Rules, Bullshit Jobs.
Michael Parenti: Make-believe Media, Land of Idols.
Thomas Frank: Listen, Liberal.
Gary Francione: Animals as Persons; Introduction to Animal Rights; Animal Rights: The Abolitionist Approach (with Anna Charlton).
Walter Wink: The Powers That Be
Walter Kaufmann: Without Guilt and Justice.