As Rosa Luxemburg wrote more than a hundred years ago, we face a "chain of incessant social catastrophes": war, poverty, climate and biodiversity crisis, and the rise of the far-right. And yet, the barbarism growing day by day is not inevitable. Workers and oppressed peoples of the world have the power to stop the capitalist killing machine and build an ecosocialist alternative. The questions for activists everywhere are: What is to be done? How to take meaningful action to help build that power?

The articles in this book are strategic and programmatic contributions to help rebuild working class power and, once again, go on the socialist offensive.