Hello haskell, Haskell I/O has always been a source of confusion and surprises for new Haskellers. While simple I/O code in Haskell looks very similar to its equivalents in imperative languages, attempts to write somewhat more complex code often end with a total mess. This is because Haskell I/O is really very different internally. I'm glad to present our collective work, the tutorial: HASKELL I/O INSIDE: DOWN THE RABBIT'S HOLE http://haskell.org/haskellwiki/IO_inside This tutorial is directed toward exhaustive explanation of IO monad arrangement and details of it's practical usage for building complex programs. The tutorial is still growing. Feel free to add your own material or tell us about questions you want to be answered there. I hope that this text will address the critical need of comprehensive Haskell I/O manual and will be especially useful for new Haskell programmers oriented to develop real-world programs. -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com