So here's why it isn't a good idea. First it will be viewed as pursuit. It's just like trying to logically explain and have our walk away spouse understand walking away and giving up isn't a right solution. All this does is add bricks to the wall they have built up. Second it'll come across as manipulative and this is something you want to avoid at all costs. If you want to not only add bricks to the wall but excessive amounts of reinforcement then by all means do manipulative things. Finally in giving books, articles, etc just like relationship talk, it brings up all the hurt and pain to the forefront for your walk away spouse. We need to make them feel comfortable around us again, feel the good things, positive feelings not negativity.
BTW, I think we've all done it a bit so don't feel bad. What my walk away wife did was read the first parts then put the books or articles aside saying "I didn't see how this applies or is relevant to us." In other words she's unwilling to sit down and acknowledge that there is any other course of action, view point or such that is relevant. Also she's not willing to actually face the fact that maybe, just maybe she's wrong or that there could be alternatives to her choice.
If we really want to love, we must learn how to forgive. - Mother Theresa