There are 40,000 cabbies in New York City but only about 200 are women. Plaut is one of them. Hack is yet another book that started out as a blog (no longer updated).
This book is pretty much what one would expect: a narrative of the hiring process followed by a collection of tales about the job. Plaut tells of good and bad tippers, kind and rude people, getting lost at the airport, getting stuck in traffic, and so on. The stories are somewhat random and unorganized, but that's the nature of the work.
Hack is interesting at times but not particularly memorable. As with any memoir, Plaut is at the mercy of what happens to her, and other cabbies may have better stories to tell. I suspect that she wouldn't have scored a book deal without the novelty of her gender. Plus she has a rather boring personal life, and although she doesn't write a lot about it, the book would have been better with less. If I reviewed books on Amazon, I'd give it three stars.