One popular theory, the VARK model, identifies four primary types of learners: visual, auditory, reading/writing, and kinesthetic.
I've been strongly academic because of books, but I have had this testing done on me in a couple of workplaces and I come out really weak on auditory (which is what most lecturing consists of) and very strongly kinesthetic.
I learned over the years, but didn't realise I was doing it until it was pointed out to me, that I would have to write what was being said and that was enough to get something into my head (writing was enough of kinesthesia). But hearing something? You might as well be talking to a hole in the wall for all that I absorbed.
Anyone else had this done?