Programming Tutorials

Excellent Free Tutorials to Learn Haskell

Haskell is a standardized, general-purpose, polymorphically statically typed, lazy, purely functional language, very different from many programming languages. It enables developers to produce software that’s clear, concise, and correct.

This is a mature programming language with the first version defined in 1990. It has a strong, static type system based on Hindley–Milner type inference. The main implementation of Haskell is the Glasgow Haskell Compiler (GHC), an open source native code compiler. Recent innovations include static polymorphic typing, higher-order functions, user-definable algebraic data types, a module system, and more. It has built-in concurrency and parallelism, debuggers, profilers, rich libraries and an active community, with thousands of open source libraries and tools.

Haskell offers many advantages to programmers. It helps rapid application development with shorter, clearer code, and higher reliability. It’s suitable for a variety of applications, and often used in academia and industry.

As at June 2019, Haskell ranks 42nd on the TIOBE Programming Community index, an indicator of the popularity of programming languages.

Here’s our recommended tutorials to learn Haskell. If you’re looking for free Haskell programming books, check here.


1. A Gentle Introduction to Haskell by Paul Hudak, John Peterson, Joseph Fasel

The aim is to provide a gentle introduction to Haskell for someone who has experience with at least one other language, preferably a functional language (even if only an “almost-functional” language such as ML or Scheme).

Read the tutorial


2. Anatomy of Programming Languages by William Cook

Learn by doing, using Haskell.

Read the guide


3. Haskell no panic by Conrad Barski

You can just cut and paste the code from this tutorial bit by bit, and in the process, your new program will create magically create more and more cool graphics along the way.

Read the tutorial


4. Haskell web programming by Yann Esposito

A simple Yesod tutorial. Yesod is a Haskell web framework.

Read the tutorial


5. Learn Haskell Fast and Hard by Yann Esposito

A very short and dense tutorial for learning Haskell.

Read the tutorial


6. Tackling the Awkward Squad: monadic input/output, concurrency, exceptions, and foreign-language calls in Haskell by Simon Peyton Jones

These lecture notes give an overview of the techniques that have been developed by the Haskell community. The author introduces various proposed extensions to Haskell along the way, and offers an operational semantics that explains what these extensions mean.

Read the tutorial


7. Happy Learn Haskell Tutorial by Hal Daumé III

This tutorial brings your Haskell reading skill from nothing to about halfway through beginner level. You will also gain the skills necessary to write the smallest pre-beginner (basic level) programs.

Read the tutorial


All tutorials in this series:

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OCamlGeneral-purpose, powerful, high-level language
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