CROWDED MARKET The nonprofit apexart presents a conversation with a technology and culture writer, Jeff Howe, who discusses the rise of “crowdsourcing,” a term he coined for a new form of corporate outsourcing to pools of unwittingly volunteer labor, as with eBay.”Phantom Captain: Art and Crowdsourcing” is a related, ongoing exhibit which features projects by Mr. Howe and a performance artist, Miranda July. Tonight, 6:30 pm, exhibit through Saturday, November 25, Tuesday–Saturday, 11 a.m.–6 p.m., apexart, 291 Church St., between Walker and White streets, 212-431-5270, free.

JUST BREATHE “Achieving Inner Peace in the Modern World” is an event led by a spiritual teacher and founder of the Art of Living Foundation, Sri Sri Ravi Shankar, who leads guests in teachings, breathing exercises, and meditation. Tonight, 7:30 p.m., Town Hall, 123 W. 43rd St., between Sixth Avenue and Broadway, 212-840-2824, $35–$45.

HAPPY BIRTHDAY The New York Public Library celebrates the 150th anniversary of the Atlantic Monthly with a daylong program of eight discussions. Talks include “The World in 2050: China as a Superpower?” and “The Art of Disarmament.” Featured guests include Wayne Koestenbaum, Laura Kipnis, and Mario Batali. Saturday, 10 a.m., New York Public Library, Fifth Avenue at 42nd Street, 212-868-4444, $15 general, $10 students, seniors, and members.