First, I hope I post in the right forum for this question!
I am working on a shader in RenderMonkey and the shader is complete, so now I am writing a small report on the shader. My problem here is that I can't find any sources to read about pros and cons about "Specular light" and "Diffuse light". I have googled but I mainly find sources that is about what specular/diffuse light is, and these sources do not talk about the pros of each light model.
I have also checked in my course books to for some clues but I cannot find any. Do anyone here have any suggestion about where I can read about the pros and cons of these to light models?