The Cairo Trilogy
Three volumes (Palace Walk, Palace of Desire, Sugar Street) spanning three generations of a Cairo family from WWI to WWII. Mahfouz proved that Arabic literature could sustain the full weight of the 19th-century European realist tradition while being entirely its own thing. He became the first Arabic-language Nobel laureate in 1988, largely on this work's strength.
Fifteen hundred pages of patient realism at a sometimes glacial pace; Palace Walk spends long chapters on the household's daily rounds before anything you would call plot arrives. By Sugar Street the grandsons have hardened into ideological mouthpieces (the Marxist, the Muslim Brother) and the novel into a schematic of Egypt's options. The translation is serviceable rather than beautiful.
The case for it and the rest of the canon open with Pro.
