Forum:Klingon Language Books - Canon or Non-Canon?

I apologize if this was previously asked and answered.

In the Canon Policy FAQ, it states:
 * Official publications by the Okudas, Rick Sternbach, Herman Zimmerman, Doug Drexler or other people directly involved in the production process may be as good as canon, since this is where the writers and producers look up the facts. Even if these books are supplemented with some information like dates or starship specs not mentioned in the show, this might be important to limit the room for speculation.

Would this include the Klingon Language books by Dr.Marc Orkand,Ph.D.?

While focusing on expanding the understanding and usage of the language tlhIngan Hol, the books by Dr.Okrand do sometimes dispense knowledge of Klingon culture and society that are not depicted explicitly in the television episodes or films.

Are the books, The Klingon Dictionary, The Klingon Way: A Warrior's Guide, and Klingon for the Galactic Traveler considered canon reference material similar to the Technical Manuals, or are they considered non-canon such as the numerous Star Trek novels? --DeyvID 20:19, 30 November 2008 (UTC)