The annual competition, attended by galleries and artists from across Ireland and with a prize of €5,000, was won by Patrick Graham.
The journalist spoke about the decline of his trade, his resistance to social media and his exasperation at the US election.
Smith spoke of her love of Oscar Wilde, as well as her belief in the power of people to effect social change.
The music producer and drummer discussed his experiences with Chic, chocolate chips and following his passion.
With donations going to the Peter McVerry Trust, O'Doherty riffed on topics ranging from Mary Robinson to the author of Winnie the Pooh.
The Zambian economist and best-selling writer spoke about the challenges facing the developing world and the importance of global trade as a solution.
Prof McCaughrean of the European Space Agency discussed the Rosetta mission, which concluded with a dramatic crash landing last week.
Tucked away in a corner of the Arts Block, the Trinity Literary Society provide an opportunity for writers to test their own creative writing skills.
After ten weeks of practice the musical, directed by Séimí Campbell, receives standing ovation on final night.
Pamela Avila reviews the visit, speech and honouring of the Chief Prosecutor of the International Criminal Court.