This is the most complete, detailed, up-to-date home reference I have ever seen. Unlike most home-themed books published today and in the past, this one relies on research, not on the author's opinion, or the way her mother did it. That's not to say this book is impersonal; the author frequently talks about the different ways her grandmothers kept house and shares little tidbits from her life that relate to the subject at hand.
This book has gotten a lot of complaints from people who say it sets up an unreasonable standard for housekeeping. I say that's okay. The author doesn't say you're a bad person if you don't vacuum as often as is optimal. She doesn't even say she vacuums that often. She just tells you what's best for your home, family, and carpet. Taking this book with the right sort of attitude, I learned a lot about how to clean my home, why I should keep it clean, and which tasks should take priority when I don't have time to clean everything (and who does?).
This book isn't just about cleaning though. You can also read about cooking, shopping, safety, fabric identification, sewing basics, book repair, legal situations and documents, and preservation of records. Pretty much anything that you can think of that has to do with your home will be in here.
This book was first published in 1999, making it twelve years old. While by and large most of it is up to date, there were a few things that seemed dated—the section on computer backups, the section on telemarketing (laws have changed drastically since then), and some of the sections on care of different surfaces (like one other reviewer noted, there's a lot on marble and not much on fiberglass or other man-made surfaces, which is probably more common nowadays). I'd love to see this book updated every ten or fifteen years.