First-Person Central Narrator, with Occasional Second Person
It's a package deal. Lamott is telling us her story and telling us everything she knows about writing. And like a lot of package deals, it gives us two for the price of one—two narrative voices, that is.
Lamott tells a lot of her stories from a first-person point of view, with herself as the central narrator. But she also wants to give advice, so sometimes she switches over to second person and addresses the reader directly as "you."
What do we get out of this package deal? We get some really cool storytelling from a famous writer and we get her talking to us directly, almost like we're out for coffee getting secret tips straight from a celebrity.