Advertisements There are no "Official" Star Trek books. The closest are the Chronology and Tech Manuals put out during the TNG-Voyager era, but even those are not officially considered canon. Personally, I think they should have just left the Klingon thing at Worf's explanation. It doesn't need an explanation, just like the meaningless panels of flashing lights on the TOS bridge needs no explanation. If it were done today, they would be able to do it differently. In the late 60's, they did what they could do then.