This is a great little book for those who love to take baths or those who want to do a little bit more self-pampering. The book is geared to women and covers different types of baths from different cultures and some ideas for relaxing in the tub. It is truly waterproof.
I honestly don't know exactly where I got this book; as I recall, it came for free with something I bought. I finally picked it up a couple weeks ago and read it--though I haven't tried anything suggested yet (most suggest or require essential oils, which I haven't bought), I quite enjoyed reading through it.
Though the book, as the title suggests, is small enough to fit in your soapdish, it is also, as listed, 164 pages, and has quite a lot of information in it. It also claims to be waterproof, which I haven't tested, but from the feel of the pages, I don't doubt.
The sections listed are:
Introduction: The Fountain of Youth Pampering your Oasis True Tranquility Ancient Remedies in the Bath Accoutrements for Pampering The Tao of Bathing Epilogue: Catering to the Other Senses
Among other things, there is information on what essential oils and bath salts are and how to use them. Much of the book focuses on different types of baths, including sort of a "recipe" for starting each type and how to carry it through. The book also focuses on different types of stretching, exercises, and massage to do while in the bath to relax and heal.
All in all, I would say the book is fun to read and have, but I definitely wouldn't pay the MSRP for it. If you want it and can pick it up for something you find reasonable I'd recommend it.