“Community How To Guide On Coalition Building” outlines the various steps that bring together a diverse group of people in pursuit of a common goal. Though the guide focuses on coalitions that seek to reduce underage drinking in their communities, the guide presents information that is useful for any coalition goal. This tool also provides sample checklists and newsletters for implementation. Topics covered in the guide are: (1) Advantages of a Coalition, (2) How to Form a Coalition, (3) Hiring a Project Coordinator, (4) Recruiting Participants, (5) Involving Youth in the Coalition, (6) Maintaining the Coalition, (7) Overcoming Obstacles, (8) How Coalitions Can Support Critical Programs, (9) Marketing the Coalition, and (10) Communicating With Members.