David has given over the years a variety of talks and lectures on subjects related to art, narrative and the history of photography. These include talks to students at graduate and post graduate level.

Recently David did a series of wide ranging talks on the History of Photography for a Hong Kong Gallery, Blue Lotus. These talks ranged from the prehistory of photography tp the development of various schools and genre's of photography such street, fashion, reportage and fine art among others. Owing to COVID 19 what started as a face to face session evolved into Zoom talks. An interesting experience.