I think it would be a good idea for him to read the first chapter. The answer to your second question depends on what issues you have. If he feels you are controlling then I would leave it alone. Also - would he listen to you if you didn't approve of his therapist?
I can tell you that the W and I are in MC. She went to her individual therapist today and after one session the therapist told her that divorce was the answer. I am not sure what was said but I question the therapist's ability to give an opinion after one meeting. Our MC called me and told me that he was shocked that any therapist would recommened a D after one meeting unless there was assaultive type behavior (there hasn't been). Our MC thought that we had a good chance to fix our M.
I would be really careful about whatever therapist he chose but realize there isn't a lot that you can do about it (maybe someone else may have a different thought as I am by no means an expert). I am still learning as I go...