The essence of contemporary negotiation best practice is to communicate to reach a mutually beneficial outcome. Long gone are the days of trying to outdo the other party. The most effective negotiators always consider reaching a balanced, carefully planned and mutually advantageous end point.
Here are some great links that combined, give you everything you need to begin to improve your negotiation skills.
If you need further help to improve the negotiation skills of you or your team, please get in touch.