Steve Butler is a professor and the Barbara J. Janson Professor in the Department of Mathematics at Iowa State University. Prior to coming to Iowa State he did a three year NSF PostDoc under the supervision of Benny Sudakov at UCLA. Before that he earned his doctorate degree in mathematics at UC San Diego under the supervision of Fan Chung. In addition he has worked extensively with Ron Graham.
His primary mathematical interests are spectral graph theory, enumerative combinatorics, mathematics of juggling, discrete geometry, and generally mathematics of fun things. Among other things, he can do eight perfect faro shuffles in a row, and is willing to teach this to anyone who stops by his office.
Since Fall of 2018 Steve has been the calculus coordinator for Iowa State University.
Published in June 2018 by Cambridge University Press is a book I edited -- Connections in Discrete Mathematics.
I have worked in mathematics of juggling (currently one of only a few mathematicians who have published more papers about the mathematics of juggling than the number of balls that they can juggle).
Coming in the near(?) future from Princeton University Press -- Juggling Counts
With Ron Graham