Peter Max is an artists whose "psychedelic" posters and graphics were popular in the 1960s and early 1970s, and he designed the appearance of the film "Yellow Submarine." He switched to painting in the mid-1970s, and his recent paintings of the Statue of Liberty were featured in Reagan's White House. A retrospective of his paintings, drawings, lithographs and etchings will open at the Hallowell Gallery in Conshohocken.