His novels are celebrated for their grim realism and compassionate portraits of the lower middle class. His masterpiece, New Grub Street (1891), unsparingly depicts the harsh literary marketplace and the conflict between art and commerce. Other major works include Demos (1886), The Nether World (1889), Born in Exile (1892), and The Odd Women (1893), which examines the struggles of unmarried, educated women in Victorian society. His final major book, The Private Papers of Henry Ryecroft (1903), a reflective, semi-autobiographical meditation on literature and life, is often considered his finest.
Although never widely popular in his own day, Gissing was admired by later writers such as George Orwell and is now recognized as a key English realist novelist.