Kuniaki Iwanami (岩波 邦明, born 1987) is a University of Tokyo graduate and a member of MENSA. He is mostly known for his various books that focus on learning and puzzles, including the "Ghost Mental Arithmetic" series.
After the passing of Akira Tago, he was put in charge of designing the puzzles of the Professor Layton series game Layton's Mystery Journey: Katrielle and the Millionaires' Conspiracy. He is also a large fan of the Detective Conan series, and has hosted a "puzzle seminar" related to it.