The Right To Be Greedy: Theses On The Practical Necessity Of Demanding Everything is a book published in 1974 by an American Situationist collective called "For Ourselves: Council for Generalized Self-Management".
Post-left anarchist Bob Black describes it in its preface as an "audacious attempt to synthesize a collectivist social vision of left-wing origin with an individualistic (for lack of a better word) ethic usually articulated on the right". Its authors say that "[t]he positive conception of egoism, the perspective of communist egoism, is the very heart and unity of our theoretical and practical coherence".
It is highly influenced by the work of Max Stirner. A reprinting of the work in the eighties was done by Loompanics Unlimited with the involvement of Bob Black (yes, the same guy who acted like a fed and ratted out his anarchist friends) who also wrote the preface to it.