If you have seen and especially liked the film, the book you go The LOVE, all movies elements are there, under increasing pressure, everything is explained, thinner, we enter deeper into the thoughts of Tyler, his way of thinking to apprehend them. For a while it becomes Tayler, we envy, we want the world he wants because it's a utopian dream but so enjoyable. This book at least as crazy as the film by David Fincher is read at all costs.