Complex geometry of twistor spaces, Differential geometry of 4-manifolds, HyperKahler manifolds, Quaternionic Kahler manifolds
Some presentation on twistor spaces
"Algebraic Geometry of Twistor Spaces" a presentation at Conference on Differential Geometry (Montreal, July 2016)
Summary of recent development in research on algebraic twistor spaces associated to anti-self-dual metrics on 4-manifolds
"Twistors, quartics, and del Pezzo fibrations"= research paper 
The introduction includes a description of history of research on algebraic structure of twistor spaces.