Good communications skills are necessary for success and happiness. If you can't express your feelings, you will get hurt. If you can't ask for what you want, you won't get it. But when you know how to communicate effectively, you will get more satisfaction from every area of your life.
Effective communication does depend on how your say it, but also on what you say - and when, where, and to whom you say it.
In fact, communication involves a set of skill as complex as those necessary for driving or swimming. The How to Communicate Workbook provides a program of strategies, techniques, and exercises that will make you a communications expert.