The Celtic Tiger ran rampant through Ireland during the boom years of 1995-2007 when national institutions expanded their collections, galleries popped up and collectors, buyers and artists had a rare time. With literature, the new young Chick Lit writers made their mark, sometimes even outselling the serious contemporaries, and Seamus Heaney rightly got a Nobel Prize. With the crash, prices in Dublin’s major art auction houses fell by 50 per cent as the blinged-up property developers froze; if they did buy, they shifted from contemporary to reassuringly Irish "genre paintings" of peasants in rural landscapes and thatched cottages by the sea.

Camera-less photography isn’t, as some might think, a 20th-century invention, discovered by experimental Modernists such as Moholy-Nagy and Man Ray. Thomas Wedgwood, before the invention of the camera and at the very beginning of the 19th century, made paintings on glass and placed these in contact with pieces of paper and leather which had been rendered light sensitive with chemical treatments. Where the painted areas blocked the light, the image left its trace. Unfortunately, since Wedgwood lacked knowledge of how to fix the images, the results vanished almost as soon as they appeared.

Contemporary art can, unsurprisingly, become dated pretty quickly – the clue is in the name. Another of Damien Hirst’s mirrored cabinets of pills or of Gavin Turk’s piss-takes of Andy Warhol at the Frieze Art Fair in Regent’s Park is hardly the sort of sight which will enthuse hardened art-gallery goers.

The 2010 Brighton Photo Biennial has seen unprecedented numbers of visitors flock to the coast, and tonight will host a talk by one of the most original fine-art photographers working in Britain today. Wolfgang Tillmans will explore his unique and hugely influential approach to photography and the relationship between contemporary art and documentary and will undoubtedly cite his latest projects, the refreshing summer exhibition at the Serpentine Gallery and the recently launched, more audacious event at Liverpool’s Walker Art Gallery.

A near contemporary of the great jazz photographer Herman Leonard, who died last August, Don Hunstein has amassed a formidable collection of images of some of the most indelible names in music, from Miles Davis and John Coltrane to Johnny Cash, Louis Armstrong and Leonard Bernstein. His work with Bob Dylan in the Sixties, when Hunstein was a staff photographer for Columbia Records and Dylan was the visionary folk singer daring to cross the frontier into rock'n'roll, have become an indivisible part of the myth of the Bard of Minnesota.

New photographs by Charlotte MacMillan of Russell Maliphant's expanded Afterlight, a mesmerising new dancework premiered at Sadler's Wells this week. The portfolio adds stills from the substantial new sections to ones she took a year ago of the opening solo created for a Diaghilev tribute programme.

Famous for its fast cars, casino, and stashing away Sir Philip Green’s gazillions, the principality of Monaco certainly isn’t a destination short on bling, nor a sense of faded, somewhat seedy glamour. So it probably isn’t high on anyone’s list for culture, least of all for contemporary art. But things are definitely on the turn: a new museum offering a genuinely challenging programme of international contemporary art has recently opened.

A soundtrack of "Purple Haze", "Hey Joe" and other eternal Jimi Hendrix hits, is currently drifting out of the Snap Gallery along the swanky Piccadilly Arcade in Mayfair. A boutique exhibition space, Snap sits incongruously amongst purveyors of "fine" jewellery and gentlemans’ tailoring and its front windows are transforming the chi-chi mall with Gered Mankowitz’s photographs of the Sixties guitar genius, Hendrix.

Regulars of theartsdesk will be familiar with the work of Jillian Edelstein. Her portraits of cultural figures have adorned several of our series, theartsdesk Q&A. There is now a chance to see pictures from her most celebrated collection at a new gallery and bookshop in south London.