The book about Lev Alexandrovich Chugaev is undoubtedly a useful and timely work. Of the many employees of L. A. Chugaev, only a few survived, and soon there will be no eyewitnesses to his bright and difficult life. That is why I consider it my duty to evaluate this book. Every major scientist is a unique and irreplaceable phenomenon. First of all, this is a pronounced individuality, its work can not always be continued in the way that the scientist himself would follow...