The editors at Princeton Architectural Press felt impelled by recent crises to help people express their views on immigration, health care, civil rights and the environment. So, they sent out a call for posters. In a month, they received 800 submissions from around the world. The best 50 are presented in a large format book with tear-out pages called Posters for Change (Princeton Architectural Press; paperback, $25). These are images you have not seen before but might soon. “Some,” the editors note, are “refined, even elegant, others crude, formal, playful, or mock-authoritarian.” The anthology includes a fantastic range of styles — from all text to all image to a striking blend of both. One illustration shows a 1950s father sitting in the living room with his two children — under water: “Daddy, what did YOU do in the Climate War?” In an afterword, Avram Finkelstein, a member of the AIDS art collective Gran Fury, writes, “Physical posters in physical spaces have a power that exceeds the evanescence of Internet messaging. The poster comes for you where you live.” Proceeds from the sale of “Posters for Change” will be donated to charity.