Understanding bokeh (ぼけ)
The Luminous Landscape has a nice article about bokeh in its “Understanding” series. The article explores the issue from a technical viewpoint, much the same as the [current] Wikipedia article on the subject.
The technical aspect is only that interesting. Fortunately Mike Johnston has taken the time to write an article about the subject from a more artistic perspective. This article is part of his late lamented Sunday Morning Photographer series on Luminous Landscape.
Henri Cartier-Bresson and kairos (καιρός)
I got myself a copy of Henri Cartier-Bresson’s retrospective book “The Man, the Image and the World”. This book illustrates the “decisive moment”, which Cartier-Bresson got so famous for capturing quickly and acutely. I found an article which discusses the concept of kairos in photography. Well worth a read. And the book is well worth its asking price.