The new tome, written by David Cote, offers a behind-the-scenes look at the hit Stephen Schwartz musical with color photographs by Joan Marcus. Cote, Marcus and members of the Wicked cast and creative team will be on hand for the 5 PM event. The Time Warner Center is located in Manhattan at 10 Columbus Avenue.

A second book signing will be held Oct. 28 at 4 PM at the NBC Experience Store at 49th Street and Rockefeller Plaza. The book signings are part of Wicked's week-long celebration of its second anniversary on Broadway, which occurs Oct. 30.

Based on Gregory Maguire's novel, which turned every Oz myth inside out, Wicked explores the early life of the witches of Oz: Glinda and Elphaba. The two main characters meet at Shiz, a school where both hope to take up sorcery. Glinda is madly popular and Elphaba is, well, green. By a misunderstanding, they wind up roommates and, after an initial period of mutual loathing, begin to learn something about each other. Their life paths continue to intersect through a shared love, entry into the Emerald City and interaction with the Wizard himself. Eventually, their choices and convictions take them on widely different paths.

Wicked, with a book by Winnie Holzman, began previews on Broadway Oct. 8, 2003, with an official opening Oct. 30, 2003. The Broadway company — directed by Joe Mantello — continues to play the Gershwin Theatre. Tickets are available by calling (212) 307-4100 or by visiting www.ticketmaster.com.

For complete details about the week of Wicked events, visit www.wicked-week.com.