Our newest hardcover bestseller, Brotherhood, a 240-page tribute to New York City's Fire Department featuring pictures taken since September 11 by leading photographers, is the inspiration for an exhibit that will open at the Museum of the City of New York on February 8 and run through May. The book, published by American Express and distributed by Sterling, offers intros by former Mayor Rudolph Giuliani and Fire Commissioner Thomas Von Essen and a prologue by Frank McCourt. It has 165,000 copies in print after three trips to press. Profits will go to two funds, including one for the 343 firefighters who perished.