Paper in Principle, a juried exhibition of student work in printmaking and mixed-media books, continues through Wednesday, April 4. A reception takes place from 3:30 to 4:30 p.m., Thursday, March 29. Hours are 9 a.m. to 5 p.m., Monday through Friday; and noon to 4 p.m., Saturday and Sunday. Visit web.cfa.arizona.edu for more information.