David can be contacted for writing consultation, autographed Star Trek photo info, public appearances, or to leave a message. Email

David has been an Invited Special Guest at numerous Sci Fi conventions photo autograph signings, meet and greet patrons and to participate in panel discussions. Some of his appearances include:

— Star Quest, Frederick, MD
— CyPhaCon – Lake Charles, LA
— TrekTrax – Atlanta, GA
— Super Mega and Pop Culture Show – Whippany, NJ
— SCARE-A-CUSE – Syracuse, NY
— Rhode Island Comic Con – Providence, RI
— American Music & Pop Culture Expo – Hershey, PA