Is there anywhere to preview some content from HaskellBook.com ? Its a little pricey for to just take a chance without seeing any same content. The TOC looks good but that's not much indication of writing style.
It is pricey, but it is also very good. The content is quite up-to-date (e.g. covers Foldable/Traversable, teaches the Functor-Applicative-Monad progression) and working through the exercises made a lot of things click that I didn't understand before.