These posters visualize tweets gathered October 13-15, 2009, from the five most heavily subscribed Twitter feeds. In order to experiment with typography in a quick, immediate way, I created 100 posters in 30-minute design sprints. Then I chose 25 designs to print and display at Maryland Art Place from December 1, 2009 to January 9, 2010. All of the posters are documented in this book. I also wrote about the process in Ellen Lupton’s Design Thinking: Beyond Brainstorming.