| Maki Kaji|
| The Big Book of Visual Sudoku: 273 Puzzles That Reinvent the World's Most Popular Number Game|Maki Kaji Wikipedia
Maki Kaji (鍜治 真起, Kaji Maki, born 1951) is the president of Nikoli Co., Ltd., a Japanese puzzle manufacturer.
He was significant in promoting the development and marketing of the game of Sudoku. He has invented or introduced various other puzzle games such as Masyu and sells 50,000 copies of his puzzle magazine Nikoli four times a year.