A hot-tip: if you live in a town/city with a university, it can be highly worthwhile to subscribe to the faculty library of a topic of your interest. These fac

A hot-tip: if you live in a town/city with a university, it can be highly worthwhile to subscribe to the faculty library of a topic of your interest. These faculty libraries tend to have far more valuable references. I pay a paltry 20 euros (!) as a yearly subscription for the local university's Arts&Philosophy faculty library. It gives me access to some outstanding books that are often very expensive. I was delighted when I accidentally discovered the facility to this subscription.