The Idea Exchange Old Post Office has been dramatically transformed into a modern digital library, ready to support the residents of Cambridge for generations to come. Explore the creative studios, discovery centre, makerspace, heritage reading room café and spectacular Grand River views with a guided tour during Doors Open Ontario Sat Sept 15, 11 am - 5 pm; and Talk at 11:30 am on “Carnegie libraries: A legacy of form and function” by Erin Smith. Visit Doors Open Ontario or Idea Exchange for more information.