The Group Theory Puzzle Book

David Nacin is a professor of mathematics at William Paterson University, where he also serves as director of the M.S. in Applied Mathematics graduate program. He received his Ph.D. from Rutgers University in 2005. His research interests include non-commutative algebra, discrete mathematics, and recreational mathematics. He enjoys designing and studying puzzles related to partition identities, the motion of chess pieces, finite groups, and other mathematical structures. Author of the book Math-Infused Sudoku, published by the American Mathematical Society in 2019, his mathematical puzzles have appeared in many magazines and academic journals. Since 2016, he has maintained a puzzle blog at quadratablog.blogspot.com.