The book "Feuerbach: the roots of socialist philosophy" was written by Friedrich Engels and is dedicated to the study and analysis of Ludwig Feuerbach's philosophy. In this work, the author considers the main ideas and views of Feuerbach, which marked the beginning of the socialist trend in philosophy. Engels shows the influence and significance of Feuerbach's philosophy on the development of socialism, and also critically analyzes some aspects of his views. This book is an important document for understanding the history of philosophical thought and its influence on socio-political processes.