Anthony King 
Structure of Social Theory [PDF ebook] 

Over the last three decades, social theory has become an increasingly important subdiscipline within sociology. Social theory has attempted to elucidate the philosophical basis of sociology by defining the nature of social reality. According to social theory, society consists of objective institutions, structure, on the one hand, and individuals, agency on the other, it promotes human social relations, insisting that in every instance social reality consists of these relations.