Learn yourself a Haskell was a great book. Many friends/colleagues picked up Haskell with that book and were really happy with it. @bitemyapp 's book may be better (I don't know, I didn't read it), but he seems to try to bash LYAH at nearly every possible occasion.
http://ircbrowse.net/browse/haskell?id=19614985×tamp=14...
https://lobste.rs/s/5pqc1y/learn_you_a_haskell_for_great_goo...
http://bitemyapp.com/posts/2014-12-31-functional-education.h...
I think this is undeserved and perhaps toxic (especially coming from someone who wrote a competing work).
He started writing a competing work several years after starting to "bash" LYAH. One of the reasons he started writing his own book is exactly because he doesn't think LYAH is particularly good.