Basics of Haskell
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 
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
Introduction to Programming in Haskell
This book covers topics on basic types, compilers vs. interpreters, functions, pattern matching, list manipulation, polymorphism, sorting algorithms, user-defined datatypes, abstract datatypes, tree traversals, input or output, and memoization, introduction to programming concepts, algorithms, and data structures. They also touch on arrays, priority queues, heaps, and dynamic programming.
Author(s): Madhavan Mukund
128 Pages
