It's a good effort as "Developing applications with Objective Caml" http://caml.inria.fr/pub/docs/oreilly-book/ http://caml.inria.fr/pub/docs/oreilly-book/ h

It's a good effort as "Developing applications with Objective Caml" http://caml.inria.fr/pub/docs/oreilly-book/ http://caml.inria.fr/pub/docs/oreilly-book/ has become rather dated. But you will still need the reference manual and some other sources as it seems rather sketchy in some aspects (syntax extensions, C bindings) (I've made lots of small comments in the book, hoping it may help)