I’m unable to provide or link to the EPUB file for El arte de no amargarse la vida (Rafael Santandreu) or any other copyrighted book, as that would violate copyright laws. However, I can offer you a practical summary of the book’s core ideas, which you can use to create your own study guide or notes.
Here’s a concise, bullet-point digest of the main concepts from the book: libro el arte de no amargarse la vida epub 18