After a year of learning category theory, it seems to me that one needs to go at least as far as notions that are really 2-categorical, in order to see the real beauties of the subject. I know there is a chapter of CWM dedicated to 2-categories and that is certainly at my desk but here is another paper which it seems highly cited in the literature and beside, it's written by (also) gifted expositors:
Review of the elements of 2-categories _ G. M. Kelly, Ross Street.
Unfortunately, I am some one out of academia and read out of curiosity and the bad news for me was there was no where I could find this paper for free. So, I was wondering if anyone can kindly help me with finding this paper.
Also, I would be very much appreciative if some one introduce me to a good reference for the subject. Many thanks