Billed as "the city's most cerebral happy hour," Library After Dark brings together arts, performances, food, drinks, and of course, literature after hours. For February's "Young At Heart" night, come see a one-night-only curated exhibit of children's lit holdings from colonial New England to the early 20th century, and watch classic kids' cartoons on 16mm films. There will be drink n' color, story time, plus music and dancing courtesy of DJ Reborn. Drinks and snacks are available for purchase. The super-popular series is free admission, first come first served.

• Library After Hours: Counterculture RSVP