Let me first say that I'm a George Washington fan. I've read a few biographies of "the first in war, first in peace, first in the hearts of his countrymen," and was excited to find this work was available in Amazon.com. Not only would I own the only book Washington ever wrote (although it was written at age 14 and was supposed to be a personal list of do's and do not's, not a book), but I would gain valuable insight into Washington's personal mannerisms as he consulted his old list frequently.
I suppose it's my fault for not carefully reading the info that Amazon.com posted. The book is a whopping 30 pages and has 110 Rules, many of which consist of only one sentence. Furthermore, most of the Rules are things that we do without thinking. One rule advises the reader not to speak "with meat in your mouth" or "Put not off your clothes in the presence of others, nor go out of your chamber half dressed." If you regularly discuss current events while a chicken leg is dangling from your teeth or serve a cold beer in your underware (unless, of course, you work at a gentleman's club), you might benefit from this book.
But I weakly attempt humor. Most of the rules, while they are common sense, remind us of how we, over 225 years later, should interact with people. Other rules advise us not to give medical advice to friends if we're not a doctor, you frustrate the sick. Don't be too hasty to spread news of someone else's misfortunes. In a business relationship, make conversation quick and to the point, yet not cold or unpleasant. While I admit that a few (five, maybe) are very outdated, many of these rules are very useful. The small size of the book allows for it to be carried in a purse or briefcase easily so that you can frequently look at it. In sum, if you have the money to burn, I say, get the book. It's helpful and insightful. If I could do it all over again, I wouldn't get it as I don't think it's worth the money.