The authoritative edition of Macbeth from The Folger Shakespeare Library, the trusted and widely used Shakespeare series for students and general readers, includes:
Essay by Susan Snyder
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, 2013, Paperback, 304 Pages. ISBN-13: 9780-7434-7710-9.