Daniel P. Sulmasy's article "The Last Word,"  from the November 26 issue outlines the Catholic case for advance directives. For more information on composing advance directives, explore the links below. Note that the legal rules regarding these documents vary from state to state.
The Catholic Health Association provides this pdf brochure  that answers common questions and concerns about advance directives.
This pdf workbook  from the Center for Practical Bioethics includes a questionnaire designed to start a conversation about advance directives.
Caring Connections provides links  to instructions for advance directives broken down by state.
Aging with Dignity offers a popular approach to composing directives called "Five Wishes." A preview of "Five Wishes" is available as a pdf download .