Luis Bou García writes about logic and the puzzles of the human mind. He is the author of ¡Aja! Paradojas que te hacen pensar, a collection of riddles that
Martin Gardner was an American popular mathematics and popular science writer with interests also encompassing scientific skepticism, micromagic, philosophy, religion, and literature – especially the writings of Lewis Carroll, L. Frank Baum, and G. K. Chesterton. He was also a leading authority on Lewis Carroll. -- Wikipedia