The Haskell Programmer’s Guide to the IO Monad — Don’t Panic — Stefan Klinger University of Twente, the Netherlands � EWI, Database Group CTIT Technical Report Stefan Klinger. The Haskell Programmer’s Guide to the IO Monad — Don’t Panic. Order-address: Centre for Telematics and Information Technology University of Twente P. O. Box 217 7500 AL Enschede the Netherlands mailto:a.m.annink-tanke@utwent