"House of Leaves" is a novel by Mark Z. Danielewski that explores the story of a family living in a house that is larger on the inside than it is on the outside. The narrative is presented through multiple layers, including a manuscript written by a character named Johnny Truant, who discovers the work of Zampanò, a blind man who analyzed a documentary about the house. The book is known for its unconventional formatting, featuring footnotes, varying text layouts, and color-coded passages. This unique structure enhances the themes of perception, reality, and the nature of storytelling, making it a complex and immersive reading experience.