Mark and I have been friends for 20 years. I've celebrated his many successes as a science fiction writer, and I was delighted when he showed interest in being one of the authors for Dangerous Intersection. I just checked the stats here, and I see that over the years, Mark has contributed 187 posts to DI. I've read every one of them, and I am repeated struck by the fact that there isn't a "cheap" post among them. They are all well-crafted and carefully considered. Every one of Mark's posts is still available at this site. Click on his name on the bottom right corner list of authors to see them. But perhaps you are not in the mood to read substantive posts tonight. If that is the case, you are in luck. About a year ago, I sat down with Mark at his St. Louis home and videotaped a long conversation with him. We covered many topics, which I am in the process of breaking into individual YouTube videos. I'm including the first three as part of this post. In Part I, Mark discusses his personal goals and the importance of art. In Part II, he discusses reading, heroes and censorship. In Part III, Mark discusses the blogosphere, including his impression of what goes on here at Dangerous Intersection. I know you'll enjoy getting to know Mark through his spoken words, at least as much as you've appreciated his written work. Without further ado . . . I'll be posting several more Mark Tiedemann videos later this week.