Vivienne Chen

Jonathan Anderson's folding, many-panelled bag decoded: every Puzzle size, the leathers that wear best, three ways to carry it and the details to check before buying pre-owned.

A specialist's guide to the GG Marmont: each flap bag size and what fits, the camera bags and totes, how the chevron leather wears and what to check before buying pre-owned.

Slimane's clasp and Philo's smiling tote: where the Triomphe and Luggage came from, every Nano, Micro, Mini and Triomphe size, and the details to check before buying pre-owned.

Pyramid studs turned Valentino Garavani accessories into a signature. Here is how the Rockstud tote, Rockstud Spike and crossbody styles differ, and how to choose and care for one.

A single photograph can empty boutiques and lift resale prices for a while. Here is the pattern, the bags named after famous women, and how to use it.