He is a social worker with a Master of Social Work degree. the past 25 years. He is a US Navy Honorably Discharged Veteran, Commander of the Bob Baker Post 315 of the American Legion, and Executive Director of the San Francisco Chapter 69 of Veterans For Peace. As a Civil Rights Activist, Mr. Caldera has often used his art and craft to insight and provoke thought. With the world as his canvas, Mr. Caldera has utilized multiple artistic medias to express his art.