This book arises in the margin of a fundamental break that has occurred in recent years within the different feminisms, and especially within radical feminism. It consists of a compilation and expansion of the material previously published in our blog, with the addition of some chapters with completely new material. It is intended to be useful both for those who are just being introduced to feminist theory, and for those who seek to deepen their understanding of feminist theory. This is a book about feminist theory and practice, but above all it is an attempt to shed some light in these dark times.