New programming book bundle from Humble Bundle - Humble Book Bundle: Functional programming by O'Reilly

Humble Bundle's last programming book bundle was awesome, this time I don't know any of the books so I can't say if they're good or not but they're all from O'Reilly so you can expect a certain level of quality by default.

You can check the bundle out here.

There are 15 books included in the bundle, all DRM free and in three formats (epub, mobi and pdf), and the bundle comes in three pricing tiers. You get 5 books when you pay at least $1, or 10 books for at least $8, and all 15 books for at least $15. As usual on Humble Bundle, you can use sliders to set an amount of the money to go towards a charity, this time the charity is Code for America.

There are a number of different programming languages covered in the bundle: Clojure (3 books), Scala (4 books), Haskell (2 books), Elixir (1 book), Erlang (1 book), JavaScript (1 book), Rust (1 book) and finally two books about functional programming in general.