Visual Methods in Social Research

I have found the following helpful: http://researchthatmatters.blogspot.com/2011/02/visusal-methods-in-social-research.html on

Banks, Marcus. (2001) Visual Methods in Social Research London, UK: Sage and 

Collier, John, Malcolm Collier and Edward T. Hall (1986) Visual anthropology: Photography as a research method  University of New Mexico Press. [New edition of Collier, John Jr., (1967) with the same title, published by Holt, Rinehart & Winston.]