Notes on Functional Programming with Haskell
This note covers the following topics: Functions and their definitions, First look at Haskell, Using the interpreter, Haskell basics, Higher order functions, More list notation, More on data types, Input or output, Problem solving, Haskell laws, Program synthesis, Models of reduction, Divide and conquer algorithms and infinite data structures.
Author(s): H Conrad Cunningham, University of Mississippi
192 Pages 
This note explains The concurrent package, The data package, The lang package, The net package, The num package, The posix package, The text package, The util package, and the Win32 package.
Author(s): The GHC Team
49 Pages
This note describes the basics of Haskell including installation and variables and gradually progressing to more advanced concepts such as monads, type classes, performance, and specialized tasks like graphical user interfaces and working with databases. The document also includes information on libraries, testing, packaging, and the Foreign Function Interface.
Author(s): en.wikibooks.org
683 Pages
