Wasn't there some virtual pushing and shoving over whether this was just a gross rip-off of a python book? Or am I confusing it with another? (Nitpicks welcome for once, so long as you can provide a link to the thing I was thinking of :D )
However, none of that has anything to do with Learn You a Haskell, which looks excellent and will probably mean I don't make my savings goal next week :<.
There's a second book, started before LPTHW and LRTHW, called Learn You The Ruby, by me. But I haven't finished it :(