The Fountainhead is a novel by Ayn Rand that follows Howard Roark, an uncompromising architect who prioritizes individualism over conformity. Roark battles against those who value tradition and mediocrity, including his former classmate Peter Keating, socialist critic Ellsworth Toohey, and tabloid publisher Gail Wynand. The novel explores themes of integrity, innovation, and the clash between individualism and collectivism. Initially rejected by publishers, it became a bestseller.