How many kinds of shoplifters are mentioned in the dialogue?

W: Is there such a thing as a typical shoplifter?
M: Uh, not really... But there are certain types most shoplifters fall into. Three types, I would say.
W: Tell me more about these three types.
M: Well... uh... people in the first type are what I call "the sudden impulse type". Doctors and psychologists call such people kleptomaniacs. They see something and just can’t ... uh... help stealing it. The strange thing about this first type is that the people in it are often well off and could easily afford to buy the thing. Sometimes they don’t even need it... and often they’re emotionally disturbed in some way.., middle-aged women, for example, whose husbands have left them, or perhaps older men whose wives have recently died.
W: What about the second type?
M: Well, those are people who are really... "little thieves" They work alone, and know exactly what they want before they go into the store. These days a lot of them, but by no means all, are teenagers who steal things they can’t afford. Leather jackets, watches, expensive cosmetics, things like that.
W: And the third type.’? What kind of people do you find in the third type?
M: Ah, yes, they’re what I call "the experts".
W: Why?
M: Well, first of all, because they’re highly organized. And secondly because they do it for a living. They usually operate in groups of three or sometimes four, and they’re extremely difficult to catch.
W: Can they make a lot of money that way?
M: Oh, yes. They’re very well off, believe me... much better off than a store detective..., or even a journalist!