Culture wars, actual wars, ecological disasters, economic uncertainty, social upheaval, and you want me to read a book on gratitude!? Yep. Radical idea. Thanks: one simple little word; the attitude of gratitude. It won't change society but it can transform your life. You can go from grouchy and anxious to calm and appreciative. Recent evidence shows the mental and physical health benefits of gratitude. Give it a go. There's little hype here, just facts and practical ideas. As a psychiatrist, I'm in a battle against people's mental illnesses. I also help prevent mental illness in the first place. The recent and radical science of gratitude is impressive and helpful in this. This slim volume references about 70 studies drawing on hundreds of experiments. More than ever, we need gratitude. I cultivate it, and recommend it to anyone wanting more contentment, less mental illness, and to get through without becoming jaded. Gratitude deserves a fair go. Radical gratitude deserves more. Gratitude may not be part of your personality, but science shows that focussing on things to be grateful for will improve health and well-being. This book provides a simple method to do this. Don't knock it till you've tried it. If this doesn't improve your life, we'll be surprised.