Stevyn Colgan is an author, artist, songwriter, speaker and oddly-spelled Cornishman. He is one of the ‘Elves’ that research and write the popular BBC TV series QI and co-writes its sister show, The Museum of Curiosity, for BBC Radio 4. He has given hundreds of talks across the UK and USA and is a regular at festivals and events such as Skeptics in the Pub, QEDCon, Cornbury, Hay, Cheltenham, Latitude and the Edinburgh Fringe. He is a contributor to the bestselling QI books and annuals and is the author of ‘Joined-Up Thinking, Constable Colgan’s Connectoscope’, ‘Henhwedhlow: The Clotted Cream of Cornish Folk Tales’, ‘The Third Condiment’, ‘Why Did The Policeman Cross The Road?’ and co-wrote ‘Saving Bletchley Park’ with Dr Sue Black. He'll be talking about aliens on the Skepticism track.