A primer on the most popular styles from across the pond.

Optimistic fashion, right this way.

Like a chic, sparkly Christmas tree ornament!

Save the frills for awards season.

Everything you need to know to get ahead on next season.

Fashion's obsession with sparkle is still going strong.

Think: Platform sandals and metallic pumps.

Think: space-occupying shapes and pattern mixing.

It's a no-fail option for both business and pleasure.

According to local designers and creatives, there's still more that can be done.

The actress wore a look from David Koma's Fall 2017 collection to the premiere of her new film, "The Bad Batch."

Nothing wrong with a little sartorial sibling rivalry.

A primer on the most popular styles from the runways in London.

Groundbreaking.

With the help of one of Hollywood's top stylists (and, you know, what is perhaps the greatest franchise of all-time), this 23-year-old Brit is destined for the sartorial major leagues.

Trust us, it was hard to just choose 15.

A recurring theme on the runways of New York, London and Milan.

Two cities down, two more to go.

Surprise: more '70s!

Bright color took center stage at Preen, Temperley London, Mary Katrantzou and more.

Lena Dunham, Rosamund Pike and more make this week's best dressed list.

Parallel lines have never looked so good on the red carpet.