When it comes to a black tie event, opt for a floor-length gown. Look for a statement dress with special design details, like a dropped neckline and bow-like sleeves.

Dear Answer Angel Ellen: I don’t usually doubt myself when dressing for an event but I’ve been invited ... no indication that it is formal or “black tie.” What is appropriate?

The classic black-tie dress code calls for an elegance and sophistication often associated with timeless black gowns and ...