Rubuta ci gaba don wannan sakin layi - Littafinta na farko da aka buga shi ne tarin shayari na 1925 "The Espalier", wanda A E Housman da Arthur Quiller-Couch suka yaba. David Garnett ya karfafa ta ta rubuta almara. Litattafan Warner sun hada da "Lolly Willowes" (1926), "Mr Fortune's Maggot" (1927), "Summer Will Show" (1936), da kuma "The Corner That Held Them" (1948). Jigogi masu maimaitawa a bayyane suke a cikin ayyukanta da yawa. Wadannan sun hada da kin amincewa da Kiristanci (a cikin "Mr Fortune's Maggot", da kuma "Lolly Willowes", inda jarumi ya zama mayya); matsayin mata a cikin al'ummomin maza ("Lolly Willowes", "Summer Will Show", "The Corner that Held Them"); jima'i mai ban mamaki, ko bisexuality ("Lolly Willowes", "Mr Fortune's Maggot", "Summer Will Show"); da kuma kwatancin rubutu na shimfidar wuri. "Mr Fortune's Maggot", game da wani mai wa'azi a ƙasashen waje a tsibirin Pacific, an kwatanta shi da "littafin satirical, anti-imperialist". A cikin "Summer Will Show", jarumar, Sophia Willoughby, ta yi tafiya zuwa Paris a lokacin juyin juya halin 1848
kuma ya ƙaunaci wata mace. "The Corner That Held Them" (1948) ya mai da hankali kan rayuwar al'ummar nuns a cikin wani gidan sufi na tsakiyar zamanai.