Frieze

Welcome to Frieze Art Fair, Britain's largest contemporary art fair, or as the Guardian's arts correspondent, Charlotte Higgins, calls it ... London's 'posh yard-sale'. Photograph: Felix Clay/freelance

What's this ? ... A visitor peers at Fivefold Eye, an installation by Olafur Eliasson Photograph: Ray Tang/Rex Features

It seems policemen get stressed too ... Yogic Policeman by Gianni Motti Photograph: Martin Godwin/freelance

Here's a bargain ... artists Jake and Dinos Chapman deface Her Majesty's image on your hard-earned cash. Absolutely free Photograph: Felix Clay/freelance

Royal doodle ... a close-up of one of Jake and Dinos Chapman's scribbles Photograph: Martin Godwin/freelance

Art works and rubbish compete for attention at the Flea Market by Rob Pruitt Photograph: Martin Godwin/freelance

Va va voom ... Untitled by Richard Prince. A fully functional, life-size model of a 1970 Dodge Challenger car. And a woman called Carly Photograph: Martin Godwin/freelance

No cars to drape over for this lot ... Women by Fischli and Weiss Photograph: Felix Clay/Freelance

Hang on, is that a man with cardboard for eyes? ... DHLel by Bedwyr Williams Photograph: Felix Clay/freelance

After all that, you may be asking yourself ... Why Are You Here? by Lara Favaretto Photograph: Martin Godwin/freelance