This book has a lot of good suggestions for making changes to your life. Small changes, one per week, that can add up to some significant improvements in your health and quality of life. Each chapter discusses one thing you can do differentely. At the end of each chapter is a summary of all the provious topics, so you can keep track of how you're doing.
At the end of the book there are some useful charts that you can use to log your progress, and a listing of web sites and books if you want to do more research. Overall, this is an interesting approach to making some improvements in your life.
That being said, I found that a lot of the suggestions aren't very practical, at least for me. For example, in the chapter on keeping dust under control, it says that if you have window drapes you should wash them once a week in hot water. I could probably manage the washing, but not taking the drapes down and putting them back up once a week. But I might consider doing it every three months.
Also if you want to follow this book to the letter, prepare to be "greened". A lot of the chapters have to do with things like eliminating processed food, eating only organic food, reducing dairy and salt, etc. Okay, some of that may be good, if you accept all of the current theories about what you should and shouldn't eat. But like many other books, this one falls prey to the fallacy of "everyone is the same, so the same diet will work for everyone".
I'm sorry, but that flies in the face of biological fact. We are NOT all the same. We come from different racial and ethnic backgrounds, and have heritages from different parts of the world where people have lived on diffeent diets based on available resources, and adapted to them over thousands of years. A diet that one person may thrive on, might actually damage another person's health. I have a friend who tried to live on a vegetarian diet and became very ill until she started to eat meat again. Diet can not always be completely a moral or philosophical choice.
I'm 6' 4" tall and weigh 245 pounds. Although current government guidelines would probably classify me as "obese", I am in very good health (aside from some of the side effects of being over 60 years old). This book says that my portion of meat should be the size of a deck of cards, and a serving of vegetables is the size of half a baseball. I can have a slice of bread (whole wheat) and half a cup of grains or starch. I know from experience that I would not do well on a diet like that. But the book only talks about "appropriate portions", with no consideration that one size does not fit all.
So take some of the recommendations in this book with a grain of salt. (No, it won't kill you!) If the organic, whole food, low-fat diet works for you, great! If not, adapt it so that it does work for you while still improving your life.
I've harped on the diet issue a lot because I think it detracts from the rest of the book. Most of the chapters have good suggestions in other areas, such as reducing clutter, exercising, and improving relationships. I recommend this book. Just don't be disappointed if you can't master all 52 changes. If you can tackle even half of them, you should be able to feel a lot better about your life.