Beginners article/paper/review for bioinorganic chemistry?

I am wanting to read more into a course that I have an exam on next term. I understand it but feel I'd be more confident about the subject with more reading around it. What sort of things should I look for-i.e keywords and type of text I'm looking for? It covers a few types of copper and iron metalloproteins and general methods for identification and classification: EPR, X Ray diffraction, Mossbauer spec and EXAFS.