Whether or not you lived through the insanity of the early 1990s rock explosion in the Pacific Northwest, you need to learn about this seminal period in the history of rock and roll. In Moscow this weekend, get a double dip of history from two guys who were on the ground during this time. Bruce Pavitt is the founder of the endlessly (to this day) influential Sub Pop Records and the author of Experiencing Nirvana: Grunge in Europe, 1989. Mark Baumgarten, now editor in chief of Seattle Weekly, wrote Love Rock Revolution: K Records and the Rise of Independent Music. At this event, both authors will sign books and talk about rock and roll in a moderated discussion. Take notes.