there were no textbooks.. in fact, most of the time in uni, the
textbooks were pretty much useless to the professors except for the
law texts (one of which was written by the prof herself! )
the other professors were professionals in their field and taught
us that the textbooks were mostly nonsensical stuff written by
acaedemics who were "divorced from reality"
i still remember the Strategic Management prof.. he said that the
front half of the textbook was all wrong, and that the chapter with
his face in it (he was featured as "the man who turned a steel mill
around" ) was dead wrong as he actually did everything which the
chapter said we should not 
he then told us all to trust our common sense and logic..
remembering that if we are going to think strategic, we should sit
down and think of everything around us and how our decisions are
going to change everything else.. and how everything else will feed
back to the equation...
good stuff, that module.. taught us that we are never ever an
isolated cell..