If you are looking to report an error or typo, please use the error reporting form instead.
All other comments or queries can be sent via this form, but you should be advised that these emails do not go directly to Mark, but rather to the webmaster of this domain. You are not guaranteed a response to your email. Mark is unfortunately not able to make time to address all of the email that gets sent his way, although he does his best to reply to what he can.
For the best chance at receiving a response to any questions about Mark, his books, his writing habits, or other general bits of trivia that you’ve been dying to learn, please visit the Ask Mark Anything site and ask your question there. Answering questions in public allows Mark to avoid answering the same questions over and over again, and if you browse the AMA site, you might see that your question has already been answered.