Book excerpt: This book not only seeks to theoretically analyze the concept, chief characteristics and framework of “social mentality”, but also explores the influence of social mentality on such elements of social functioning as individuals, groups, societies, markets and countries, and the influence of such elements as cultural, social, economic, political and mental factors on social mentality. Besides, this book discusses the structure of social mentality, tools for measuring it, and an indicator system. What’s more, it explores the role of the social mentality mechanism in the construction of harmonious societies.