Sam Penrose is a citizen of Sausalito, Marin County, California, the United States, and the world. He belongs to the communities of the Sausalito houseboats, Willow Creek Academy and Angaza, where he develops software. If you send email to “sampenrose” at that gmail dot com service he’ll probably reply. Sometimes he tweets at @sampenrose. You can read more about his neighborhood in How Buildings Learn, which is currently in a 583-way tie for first on his favorite books list.