The Science Fiction of Cordwainer Smith - Karen Hellekson

"The paperback book is 158 pages long: that's 104 pages of the text itself, followed by a glossary of CS terms, a bibliography, a list of manuscripts at the Spencer Research Library in Lawrence, Kansas, and an index. Its $35 price tag seems steep to me, but I suppose academic books tend to cost more than general interest ones, due to the smaller readerships. As a librarian myself, I can't help reminding you that your public or academic library may be able to get it for you on interlibrary loan. And there's a good chance you can get a used copy online; I have links at the bottom of this page."

Unseen.