Valerie Didier-Hess and Hussam Rashwan are launching a catalogue raisonné ofMahmoud Said’s work in Dubai this week, Anna Seaman writes in The National. Didier-Hess and Rashwan’s catalogue raisonné will be a comprehensive, annotated listing of all the known artworks by Said, and used as a document of authenticity for third parties. It is published by Italian house Skira over two volumes. "Mahmoud Said is so special because he did not have one specific style or recognisable subject matter. It is his use of colour that can characterise him but he doesn’t belong to any group, -ism or trend because he influenced himself so much from many different sources," says Didier-Hess.