The Monad.Reader

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Revision as of 08:47, 14 April 2009 by WouterSwierstra (talk | contribs)
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The Monad.Reader is an electronic magazine about all things Haskell. It is less formal than journal, but more enduring than a wiki-page or blog post. There have been a wide variety of articles, including: exciting code fragments, intriguing puzzles, book reviews, tutorials, and even half-baked research ideas.

Latest Issue

The Monad.Reader Issue 13 is out now. Issue 13 consists of the following four articles:

Rapid Prototyping in TEX
Stephen Hicks
The Typeclassopedia
Brent Yorgey
Book Review: Real World Haskell
Chris Eidhof and Eelco Lempsink
Calculating Monads with Category Theory
Derek Elkins

Discussion of this Issue's articles may be found on a separate page.

Feel free to browse the source files. You can check out the entire repository using darcs:

darcs get

The source code and LaTeX files have all been released under a BSD-style license.

I'd welcome any general discussion and feedback on the Talk page.

Previous editions

All the previous editions have moved to a separate page: The_Monad.Reader/Previous_issues. Some of the older, wiki-published articles need some TLC. If you read any of the articles and can spare a few minutes to help clean up some of the formatting, your help would really be appreciated.


If you're interested in writing something for The Monad.Reader, please download the instructions for authors. You can also check out the most recent version from the darcs repository at The deadline for Issue 14 is 15 May, 2008.

Feel free to contact Wouter Swierstra with any questions.


You can buy The Monad.Reader t-shirts and merchandise from Cafepress.

The name

The name is a pun, I'm afraid. A magazine is sometimes also referred to as a "reader". The articles are not necessarily about monads.