• Celebrate the opening of Elie Tahari’s new shop at Bloomingdale’s with the designer, where he’ll be styling live models inside the Lexington Avenue store window. Attendees can also view a holiday/pre-spring 2012 runway presentation hosted by Bloomingdale’s fashion director Stephanie Solomon. 1000 Third Ave., nr. 59th St., third fl. (212-705-2000); 5:30-8.
• Join Thrillist and H&M to celebrate the revamp of the Herald Square store. Shoppers will enjoy a D.J., snacks and cocktails, and fashion consultations with stylists, plus discounts on all purchases. The first 100 guests to spend over $200 will receive tickets to the Versace for H&M pre-launch on November 18. H&M Herald Square, 435 Seventh Ave., nr. 34th St. (212-643-6955); 7-10.
• Meet Richard Avedon’s assistant and “right-hand man” Gideon Lewin when he unveils his new book, Avedon Behind the Scenes 1964–1980. Guests will view previously unpublished photos, learn details about Avedon’s life in fashion, and hear the stories behind his iconic photos. The Museum at FIT, Seventh Ave. at 27th St. (212-217-4558); 6pm.
• Check out unique fall fashion and jewelry by local New York designers when they showcase their work for a limited time at the Independent Designer Pop Shop. Chelsea Market, 75 Ninth Ave., nr. 16th St. (646-732-6877); 11-8.