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
9 primary books17 released booksAuthored 6% of series
Spectrum is a 17-book series with 17 released primary works first released in 1994 with contributions by Arnie Fenner, David M. Bressoud, and Edward J. Barbeau.