In 1986 visiting Aaron Siskind in Providence he show me several pictures taken in Machu Pichu long time ago. His photographs were only details, lines where the stones barely touch each other. They were amazing, they talk about Machu Pichu more than any other that I have seen before. Thirty years late I went for a day to Machu Pichu. Aaron Siskind photographs were an inspiration for this book wish I dedicate to him.