If you suffer from a chronic form of depression the chances are that you don't even realise you are ill. Most sufferers of dysthymia believe that their symptoms are normal, or incurable, "it's just the way we are". Not so! Chronic depression can be treated, managed, maybe even cured. According to this book anyway. What is really important is that you understand the nature of your problem and are well informed about the range of possible treatments.
If you suffer from chronic depression then most "You Can Be Happy!" type of self-help books don't give you the information you need to recover and to deal with potential relapses. Most self-help books on depression assume that you know what it feels like to be happy - which, if you have been depressed for a very long time, you probably don't.
If you are looking for a book which tells you how you can fix yourself without having to ask for help from anyone else then this is not for you. If you suspect you have a form of chronic depression and want to be able to make informed decisions about your treament then it will empower you to search for the most appropriate treatment for your depression. It will help you to work out if you are depressed, and if so, what type of depression you have. It gives useful information about medications and psychotherapies, alternative remedies and self-help strategies, advice on diet and exercise. It treats all these as part of a whole solution which for most people will be a pick-and-mix of several different strategies. It is written, as far as I can judge, to be read by both patients and students. It is accessible to the layperson (no really hard Latin words) yet it contains enough information on research and references to articles in medical journals to interest a student or a practitioner.
After reading this book you should be able to decide for yourself the kind of treatment you need, and have a much more equal discussion with your doctor on the way your case should be treated and the results you can expect.