This is an excellent introduction to the notion of Forcing from, as it were, the horse's mouth. Cohen is, however, something of an unreconstructed non-constructivist, and so does not seem to take the Intuitionist view all that seriously. Basically, he has no problem with completed infinities and so embraces the whole menagerie of large cardinals that ultimately flow from this standpoint. So if the whole idea of the Continuum as it stands gives you a bit of a philosophical itch in a place you can't quite reach, this book won't help you scratch it. It is, however, in it's own way, fascinating.