Books alone may not save a marriage

I have been reading several articles on the internet about relationships and marriage.  I am not doing this because my marriage is in serious trouble but I am doing it because I am curious if you really can save marriage by reading what to do.  What I am finding is that there is a lot of good advise to be had if one is willing to look for it.  From what I have found I believe they would be a good starting off place to fix a marriage.  I think it would be difficult to do with just the book alone and not other help.