Learn OCaml

I ordered this book pretty much immediately after hearing about it – There have been a number of bad reviews of it, but I think they’re pretty unfair.
It’s definitely not an introductory book on functional programming or even an introduction to OCAML itself – it tries to do pretty much what the title says, which is attempt some down and dirty real-world programming in the language. As far as I know , there are only two books on OCAML ( the other being Objective CAML for Scientists – so credit where credit’s due.

http://www.cs.man.ac.uk/~david/categories/book/book.pdf

the pattern matching in ML and prolog are just lovely i think

http://www.apress.com/book/bookDisplay.html?bID=10146