See https://logicpress.ie/authors/machale/Des MacHale was born in Castlebar, Co.Mayo, Ireland, some time ago. He holdsB.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. In 1996, he received a Diploma in Geology from University College Cork and in 2015 the National University of Ireland awarded him an Honorary Doctorate in Literature for his books on George Boole. He is Emeritus Professor of Mathematics at University College Cork where he taught for forty years.He is the author of over eighty published books on such diverse topics as Lateral Thinking Puzzles (with Paul Sloane), Wit, Jokes, Puzzles, Words, George Boole (with Yvonne Cohen), John Ford's movie The Quiet Man, and Giving up Smoking.His interests include Mineral and Fossil collection, recreational mathematics, wit, humour and jokes, words, photography, book collecting, broadcasting, 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.