Please analyze the tweet "The book that can start improving your relationship tonight.  Taking you on a journey of #fun, #laughter, #romance and #metaphysics.  htt…" and classify its emotional content. Choose from the following emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If no emotions are detected, respond with "neutral or no emotion".
joy, love, optimism