On 20-Feb-08 I'm giving a virtual seminar introducing mental models. This seminar is produced by my good friends at User Interface Engineering near Boston, MA. You can log in, listen to the seminar live, and ask questions, or if you've got a full dance card that day, log in and listen later. The price includes a copy of my book. Furthermore, thanks to the generous nature of the folks involved, you can use the code RMYOUNG1 for a $30 discount.