When only works on paper are presented, as they are in Joanna Pousette-Dart’s current exhibition at Locks Gallery in Philadelphia, it provides an opportunity to encounter them as ends in themselves. Too often, works on paper are dismissed as merely means to an end, studies for a painting or mural, perhaps. That this is manifestly not the case here, however, does not deny the importance of correspondence, in both senses of the word: likeness and discourse.