For Italian, I don't think you can go wrong with Marcella Hazan as a starter. Her first Classic
has lots of instruction and deals with basics and how to expand the basics into some excellent creations. Also good descriptions of all the pastas. Is she a starting cook?
As far as Mediterranean, do you mean as in ... southern France, northern Africa, maybe the North African influence on Sicily, Spanish, Greek? Not sure what you're thinking of there but there is a huge variety.