Nob is a celebrated inventor, collector and popularizer of puzzles, one of the best the world has ever seen.

He has written more than 70 books on puzzles, has monthly puzzle columns in several popular magazines including Quark, and has participated in international puzzle parties all over the world.

Nob found his inspiration for Hoppers from a small-board version of the popular peg solitaire genre, called "The Great Thirteen," first created in 1899. The original puzzle had a one peg set-up, but Nob saw the potential for introducing a range of challenges, ranging from easy to very difficult, on this basic platform.

Nob is also the creator of Rush Hour®, Shape by Shape®, Lunar Lockout™ and FlipIt™, as well as many puzzles which are sold exclusively in Japan.