**Answer KEP:** I plan on reading [this](https://www.amazon.com/Axiomatic-Method-Category-Theory-Synthese-ebook/dp/B00FWH57D6/ref=sr_1_1?ie=UTF8&qid=1538412903&sr=8-1&keywords=axiomatic+category+theory&dpID=41q5atBsQFL&preST=_SY445_QL70_&dpSrc=srch), maybe others will also find it interesting.