Textbooks
Programming in Haskell
, by Graham Hutton; Cambridge University Press, 2007.
Java(TM) Programming Language
, by James Gosling, Ken Arnold and David Holmes; 4th edition, Prentice Hall, 2006.
The Haskell Book is
required
. The Java book serves more as a reference.
Haskell Pointers
The Official Haskell Website
A Gentle Introduction to Haskell Version 98
The Haskell 98 Report
The Glasgow Haskell Compiler (GHC)
Using the Interactive Environment