An important life hack about Zero To One is that if
you watch 20 minutes of a video of Thiel's book tour,
you can skip the first third of the book. Thiel is an
entrepreneur who made it big dropping out of Stanford
and starting Paypal; he has been a successful investor
since.
An investment banker I consulted says he liked the book
but it banged on about monopolies too much, which I
found funny because the virtue of monopolies is the
theme of the book.
It closes out in advice for your own start up. Evidently
the book grew out of notes for a Stanford class he taught
in 2012, whose bootlegged notes had gained online 
attention. Perhaps that's why the book feels a touch
hollow and meagre but crisp: It was some of Thiel's work
being unintentionally circulated, and he padded it out
to formally publish it himself.
The crispness comes from Thiel's personal literary power.
His ideas are always presented first by their connection
or counterpoint to admittedly well-known quotations.

Six and two thirds out of ten; a bonus one sixth of ten 
if you just skim the first third.