Des MacHale was born in Castlebar, Co.Mayo, Ireland. He holds B.Sc. and M.Sc. degrees in Mathematical Science from University College Galway and a Ph.D. degree in Algebra from the University of Keele in the UK. He is Emeritus Professor of Mathematics at University College Cork, where he taught for forty years. He is author of over sixty published books on such diverse topics as Lateral Thinking Puzzles (with Paul Sloane), Wit, Jokes, Puzzles, George Boole,John Ford's movie The Quiet Man, and giving up smoking. Among his interests are Geology (in which he has a diploma), photography, broadcasting, book collecting, recreational mathematics, humour, family history, and puzzles of all kinds. He and his long-suffering wife Anne have five wonderful children and three even more wonderful grandchildren and live in Cork. Logic Press (logicpress.ie) publishes books related to Mathematics, including other titles by Des MacHale, and has a Less Serious Division (logicpress.ie/LS/), which caters to the rest of life.