I'm a Lady, 2009, by Mary Sibande at the Where Do I End and You Begin group exhibition in Edinburgh. Click to enlarge  Edinburgh art festivalThis energetic art festival once again brings commissions, exhibitions and projects to venues all over Edinburgh. This year explores global art, as Glasgow hosts the Commonwealth Games. Shilpa Gupta, Shannon Te Ao and Emma Rushton are among the artists in Where Do I End and You Begin, a large international group show at the City Art Centre that is the festival's central focus.• Various venues, from 31 July to 31 August. Where Do I End and You Begin is at City Art Centre, Edinburgh, from 1 August until 19 October.  Craig CoulthardDrones and bagpipes feature in Coulthard's film installation in Edinburgh's secret gothic treasure, Trinity Apse – a medieval chapel hidden near the High Street.• Trinity Apse, Edinburgh, from 31 July until 31 August.  American ImpressionismThis survey of Americans who painted in France and joined the avant garde in the 19th century is full of radical talent, including the pioneering woman artist Mary Cassatt and the brilliant, sly John Singer Sargent.• Scottish National Gallery of Modern Art, Edinburgh until 19 October.  Roderick BuchananPerformance artwork about the Scottish Enlightenment thinker Thomas Muir is exhibited in a former accountants' office.• Randolph House, Edinburgh, from 31 July until 8 August.  Slow LearnerSuch estimable artists as Susan Hiller, Marcel Broodthaers, Ed Ruscha and Lawrence Weiner feature in this summer group show.• Timothy Taylor Gallery, London, from 1 August until 23 August  El Greco – An Allegory (Fàbula) (c1580-85)Three figures gather around a pale flame. The boy lighting the candle and a man looking on are joined by a monkey. All three are fascinated by that ethereal light. It draws them out of their darkness. Is it the light of divine truth? El Greco is, after all, a deeply religious artist. Yet this light attracts not only a boy and man but a primate that seems to share for a moment in human emotions and thoughts.  • National Gallery of Scotland, Edinburgh.  Who really took the world's first selfies  That the V&A's subversive new show, Disobedient Objects, is full of unlikely protest designs – from blow-up cobblestones to tiki love trucks and dwarf hats  What the earliest ever colour photography from Russia is like  That Ivan Chermayeff is the genius behind the world's most iconic logos  That an artist has sent a bonsai tree into space  The 10 best artists lost in the first world war  That the fight over the Olympic cauldron design has been settled out of court ...  ... And why it's a milestone for designers all over the world  Why Scott King is creating his own version of American Vogue  That the curse of Tutankhamun is back ... in Oxford  And how "Tutmania" struck the world in the 1920s, from magic acts to romance novels  That Damien Hirst's "Saatchi gallery" will open in spring next year  Why Scotland should follow its art and vote no to independence  How disgruntled developers are trying to Hack the Art World  Why Hawaii's waves are the world's most spectacular  Share your digital artworks with us now
The original selfie-snappers and Azuma Makoto's extraterrestrial plant life, plus the row over the Olympic cauldron design is resolved, and the world's artists flock to Scotland