Scott Kim also did ambigrammatic poster designs for "Martin Gardner's Celebration of Mind" for art least four years running: https://quuxplusone.github.io/blog

Scott Kim also did ambigrammatic poster designs for "Martin Gardner's Celebration of Mind" for art least four years running: https://quuxplusone.github.io/blog/2020/10/18/scott-kim-gardner-ambigrams/ https://quuxplusone.github.io/blog/2020/10/18/scott-kim-gard...