Reading this book made me completely reevaluate my vacation choices. It covers a wide range of trips spanning across the farthest corners of the earth(yes, there's an antarctica trip, too), some that you've thought of, but most you probably haven't. The types are broken up into sections: there's Arts & crafts, Volunteer vacations(my personal favorite), learning retreats, and wellness escapes. With the multitude of options, you'd be hard pressed not to find something that you're really interested in, or, more likely--several. Each trip/cause has general costs, whats included in those costs, and contact info, including websites--although one of the websites that i visited was completely in spanish--and there had been no indication in the review that you had to be spanish speaking/literate to participate in that particular vacation. If there was one thing that was really lacking in this book, it doesn't quite tell you how much of the language you need to make your vacation enjoyable--am i okay with a phrase book or should i start studying spanish now? it doesn't really answer these questions consistently.
4 stars because the book does not address what I consider to be important information related to how difference sexes, nationalities and language levels are received by the locals. For example, the middle east trips made no mention of whether it would be difficult for lone travelers or female travelers(or a lone female traveler), which is important since I have thought of taking a few trips alone. Not that I expect this book to do all your research for you, but it would be nice if it were to mention possible problems with certain areas.
On the whole, i found this book to be incredibly enjoyable, but it is not a one-stop vacation description, its just a starting point. you still need to do a lot of research about the vacations that you find interesting. It definitely gave me new ideas and perspective about what i can really do while i'm on vacation--i can learn a craft, begin a language and immerse myself in a culture that most tourists will never take the time to appreciate. i highly recommend this book :)