i dig (i haven't read those particular books either, but i've read all the penguin ones); but the books aren't canon. :-) the canon is still inconsistent on the point. (though RotS did make me feel a little better about ghost!ben's description of yoda as "the Jedi master who instructed me", as though he'd been the only one -- a quibble that has, i kid you not, lost me friends before. heh.)