Happy Valentines Day, suckers: how Damien Hirst’s cashing in on Cupid

The artist’s latest show, featuring banal images of love hearts and butterflies, looks like an attempt to squeeze money out of innocent punters

Rowan Moore’s top 10 exhibitions of 2014

Parking lots in Los Angeles, arty wind tunnels, Dada collages and 1960s visions of future living – Rowan Moore picks his favourite shows of the year

Mary Katrantzou: my love affair with Guy Bourdin’s photography

As the biggest ever Guy Bourdin exhibition opens in London, fashion designer Mary Katrantzou talks about the French photographer’s influence on her work

Flat, soulless and stupid: why photographs don’t work in art galleries

Photographs can be powerful, beautiful, and capture the immediacy of a moment like nothing else. But they make poor art when hung on a wall like paintings

One of world’s best private collections gets public airing in Madrid gallery

The Abelló Collection on display at CentroCentro Cibeles includes pieces by Picasso, Dali, Matisse and Miro

Fondation Cartier celebrates 30 years with portrait tribute to artists

Celebrated figures in music, film and science included in nod to treasured ‘family’ as Paris museum marks anniversary