Only Revolutions is a novel by Mark Z. Danielewski that follows two teenage vagabonds, Sam and Hailey, on a mythic, time-bending road trip across America. Told through two alternating, free-verse narratives that must be read by flipping the book upside down, it presents a puzzle-like love story set against a backdrop of historical events stretching from the Civil War to the present day. The book is known for its experimental format, which uses unique typography, marginal historical data, and a dual-narrative structure to challenge traditional linear reading.