The 4th PENN-UPRH PREM Symposium on Soft Matters in Materials Science will take place on Friday May 7th, 2010 in Palmas del Mar, Humacao, Puerto Rico. Six plenary talks will be offered by the invited speakers: Peter Collings (Swarthmore), Monica Olvera de la Cruz (Northwestern), David Pine (New York University), Paul Janmey (PENN), Daeyeon Lee (PENN), and Arjun Yodh (PENN). The symposium will also include a poster session by PREM students and other scientists from Puerto Rico. The first PREM symposium was organized in 2007 on the topic of Advanced Materials. Since them, approximately 85 researchers and students have met at Humacao every year to participate in the event. More information can be found at: http://prem.uprh.edu/symposium.