Mohammad Omar Khalil speaks to Maya Jaggi about his solo exhibition Homeland Under My Nails and looks back on his work. A painter and master printmaker, Khalil trained in Khartoum in the 1960s and went on to study in Italy before moving to New York in the late 1960s where he has lived and worked ever since. Khalil continued to move between the U.S. and North Africa, to Morocco and Sudan. An influential figure in international modernism, Khalil ran print workshops at Asilah Festival, established by the Casablanca Art School over three decades. Now aged 83, Homeland Under My Nails is the first UK solo exhibition of the work of this important artist.