TITLE: Gowers' proof of Szemerdi's theorem
QUESTION [7 upvotes]: Are there any good books or other resources (expository notes) which explains Gowers' proof of Szemerdi's theorem in detail?

REPLY [2 votes]: I learned of it through Tao and Vu's book Additive Combinatorics, but this is not an easy read (on the other hand, it's not an easy proof).