This week we feature part two of our Last Seen conversations as Sam catches up with UN youth advocate, entrepreneur and public speaker Santiago Velasquez, who joins the show along with artist Kathleen O'Hagan who worked together with Santiago to bring his most cherished visual memories to life.

We also celebrate Audio Description Awareness Day which is coming up on April 16, as Vision Australia audio description manager Michael Ward joins the show to chat about a new partnership with the Australian Centre for the Moving Image (ACMI) in Melbourne, and fills us in on the latest offerings from the world of audio description.