Collection of open-content textbooks about Haskell.

By Simon Thompson; Addison-Wesley, 1999, ISBN 0201342758. Edition 2, introductory textbook to functional programming in Haskell. [University of Kent]

Tutorial aimed at people who have experience in imperative programming languages but haven't programmed in a functional language before.

This short tutorial introduces monads to Haskell programmers.

A tutorial for people with a background in imperative languages like C, C++, Java or Python.

First of a series of three articles covering basics of Haskell programming.

An introduction to Haskell, including explanation of basic concepts and exercises. [Postcript]

A tutorial site for Haskell aimed at programmers used to imperative languages (such as C).

A tutorial on Haskell from Walla Walla College

A thoroughly indexed reference to Haskell syntax and libraries with many examples.