The authoritative edition of Richard III from The Folger Shakespeare Library, the trusted and widely used Shakespeare series for students and general readers, includes:
Essay by Phyllis Rackin
Edited by Barbara A. Mowat and Paul Werstine
Visit Folger.edu for more resources, including overviews of each play, information about Shakespeare's world, and teaching modules.
William Shakespeare, 2014, Paperback, 432 Pages. ISBN-13: 978-0-7434-8284-4.