It includes Urth humor and a lexicon of the words he used (every one of which is/was an actual word used at one time--a well known trait of Gene.) A must have, though a hard find, for any Gene Wolfe fan. And if you're not a fan, go be one, okay? It's way worth it.

    And if every page of these chapters does not proclaim to the reader that the only means for the realization of Truth is ahimsa, I shall deem all my labour in writing these chapters to have been in vain. And, even though my efforts in this behalf may prove fruitless, let the readers know that the vehicle, not the great principle, is at fault.- M. K. Gandhi