Via several routes, I found the Learn you a Haskell for Greater Good
tutorial (yes, that's really its name). The humor is occasionally a bit forced, but it's pretty good, and the author's hand-drawn cartoons add a lot to it. I wish I was that talented: I hired an architecture student to do the diagrams for the Software Carpentry
course, and "let" Jason Montojo
do the illustrations for Practical Programming
, but wished both times that I could do the work myself. Kudos to LHGG's author for a job well done.