"Problems in Group Theory" by John D. Dixon is a trade paperback textbook published by Dover Publications in 1973. It is part of the Dover Books on Mathematics *Series and is intended for a college audience. The book contains 431 challenging problems in all phases of group theory, covering topics such as subgroups, permutation groups, automorphisms, normal series, solvable and nilpotent groups, the group ring, and representations and characters. It also includes full solutions to problems in a separate section, making it a valuable resource for students and researchers in the field of group theory.