The Thank You Note:
Sending a prompt and short "Thank You" note by email or mail is a great first step to getting re-invited to the show. This should be brief, friendly and sent no later than a day after the interview. If you are sending a book as a follow up, include a handwritten note. However, do not plead for another interview. Just keep it simple and to the point.
99pr.com
http://www.99pr.com/article.php?story=20050801162624297