What is the USSR? Wasn't the experience of 70 years of development of the USSR in vain? What did he give for the future? What lessons—both positive and negative—can supporters of socialism learn from this experience? Was the project named “USSR” completed? Is the collapse of our country the end or the beginning of new practices of forming and cultivating the “kingdom of freedom”? These and many other questions are answered by the authors of the book: famous Russian scientists, researchers of the Russian Academy of Sciences, professors of M.V. Lomonosov Moscow State University and other Russian universities , foreign authors.