Robin J. Wilson has written at least 14 books. Their most popular book is Four Colors Suffice with 5 saves with an average rating of 4⭐.
Series
17 primary books25 released booksAuthored 4% of series
Spectrum is a 25-book series with 25 released primary works first released in 1994 with contributions by Arnie Fenner, Cathy Fenner, and David M. Bressoud.