I was discussing dance technique and dance technique books with a friend recently and i realised how poorly modern competition dancing is served by written texts. I don't mean to sound irreverent here, but sport dancing is no different from many other skills and professions. Techniques, skills, change with time: they evolve, get refined, become out-moded and so on.
In many professional and sporting areas there isn't just one or maybe two text books on technique. In my area of computer engineering (which of course i realise is very different from sport dancing - but the general point i'm making still holds) there are hundreds of texts on different aspects. Nobody would dream of claiming that a particular text is "THE" text to follow.
I believe that in dancing ,the existing technique books have indeed become a little out of date. Perhaps a better dancer would comment on this point. But in any case, where are the books written on specific topics - like "modern tango technique" - by the top dancers? Yes, there are videos and CD's but they don't go into the level of detail and refinement that's sometimes needed, and there is definitely a place for a multimedia approach to specific dances. Harry-Smith-Hampshire's superb short text on Viennese is the sort of thing i'm talking about - with a CD to'show' the important bits.
OK - there's less money in dancing (certainly compared with computer engineering) but i believe such texts/cd approaches would be very popular with dancers.