[anon_c]

Standard ML. It's simple, well-designed, stable, and consistent.

http://www.itu.dk/~tofte/publ/tips.pdf

http://homepages.inf.ed.ac.uk/stg/NOTES/notes.pdf

A full book. It's good, but don't start with it: http://www.cs.cmu.edu/~rwh/smlbook/