Гугловцы опубликовали слайды по Хаскеллу.

Haskell is not one of the internally "blessed" languages, but a dedicated team of volunteers is making use of 20% time to try to make Haskell at Google possible.
(что правильно)

https://github.com/google/haskell-trainings

Собственно 2 пдф (92 и 182 слайда соотв)
https://github.com/google/haskell-trainings/releases/download/v1.0/haskell_101.pdf
https://github.com/google/haskell-trainings/releases/download/v1.0/haskell_102.pdf