I need to learn principal component analysis from scratch for my research project, but it seems like a fairly staple technique that there isn't a text on it which stands out in particular... I found one by Jolliffe and another by Izenman (Modern Multivariate Statistical Techniques, Springer) with a chapter on linear dimensional reduction and principal component analysis. Is there anything you would recommend me? Also bearing in mind, I don't have much background in applied statistics... Thanks in advance!