The Book of Happiness is more than just a practical guide to improving your happiness levels. It's a complete makeover, aimed at putting a spring in your step, and a permanent lift to your spirits. We all know happiness is a state of mind, but few of us know how to improve our share of it. Many people think that happiness just comes out of nowhere. Not so. The reality is you can create your own happiness by choosing what you do, what you say, where you go, what you remember, who and what you surround yourself with, what you think and what you listen to.

The Book of Happiness kicks off with a Happiness Questionnaire to give you an instant snapshot of your current state of mind. Once you have scored yourself, you will learn the areas you need to focus on. There is a workbook to complete at each key stage, as well as stirring anecdotes, tips and happy thoughts to keep you going.

Just remember: it only takes 21 days to get rid of an unwanted habit and to acquire a new one. Isn't it about time you got the happiness habit?