El Secreto Libro Review

It seems you're referring to "El Secreto" (The Secret) by Rhonda Byrne, not "El Secreto Libro" as a title. If you meant that book, here’s a concise summary of its content:

The book promotes the "Law of Attraction"—the idea that positive or negative thoughts bring corresponding positive or negative experiences into a person's life.

Let me know how I can refine this further.