O'Reilly have stated that they are not interested in a book on OCaml at this time. They do not perceive that there is sufficient marketplace to support such a book.

There is a French O'Reilly book, but they have no intention of continuing to sell it or finishing and publishing the English translation.

O'Reilly's "so you want to write a book" guide for authors.

OReillyNet Article

Richard W.M. Jones will write a proposal for an article for oreillynet.

Chromatic suggested the following topic for the article:

"Why OCaml rocks: show the high points, the stuff that OCaml makes easy, without getting bogged down in the language details. Point people to online documentation for the details."

Guidelines for writing an article for ONLamp.com