Five volume set written by an author/professor of anthropology and sociology at the University of St. Edward Island, Canda.The set is crisp and clean inside and out with no names or writing.. Four of the books are hard cover, but volume II is a soft cover, though you can't tell just by looking. This book too is pristine with no spine crease. The books measure 6-1/2" x 9-1/2 and have over 3000 pages collectively. Though researched, the books are remarkably accessible to the reader. It's a study of behavior with an emphasis on specific behaviors and human responses to instincts or feeling... View More...