As it is the only reason I would have for continuing is that I already wanted to read it. But “it’s a book about programming” is not much of a sales pitch.
I guess if you love the style that is the reason to continue?
Scrolling to the end, a better title might be “An Introduction to Haskell” and you need to provide your email address to read more than the first few pages.
Sigh.
I find the grandiosity hard to resist (“a whole type of programming, wow, sounds neat!”) but the author really seems to want to take us for a ride first.
Edit: After he takes your email he asks for 5 euros to get access. Scammy.