The performance and book signing will begin at 4 PM.
The event is scheduled to feature the musical's creator, Dave Malloy; author Suskin; and The Great Comet stars Josh Groban, Denée Benton, Brittain Ashford, Gelsey Bell, Nick Choksi, Or Matias, Grace McLean, and Lucas Steele.
The new book is available from Sterling Publishing. Barnes & Noble is located at 150 East 86th Street.
The critically acclaimed new musical plays Broadway's Imperial Theatre.