Here I discuss recent advances on surface science of asphaltenes focusing on phenomena related to oil-water interfaces to better understand the mechanism of asphaltene adsorption and emulsion stability. This review summarizes the results obtained from different evaluation techniques adopted by researchers, including indirect and direct experimental approaches, and simulation approaches. I attempt to explain the potential reasons for discrepancies in results, which could serve as a guide to adopting appropriate strategies and control variables for pursuing further investigations on this topic.