This set traces Herbert Spencer's influence, from his contemporaries to the present day. Contributions come from across the social science disciplines and are often taken from sources which are difficult to access.

He was one of the principal proponents of evolutionary theory in the mid nineteenth century and his reputation rivaled that of Charles Darwin. This story of his life is based on selected correspondence and previously unpublished papers.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations.

This volume book contains a collection of philosophical essays written by Herbert Spencer.