It's OK for a quick read
This little booklet provides the most basic information about patents. I bought it thinking that it would be a good thing to supply new employees at my company. Although I think it is OK in terms of content (nothing particularly bad), I am not sure that there is anything interesting enough here to get anyone to really read through it.
Most of this information can be found on-line and up to date from government websites. Although I have not checked, it would not surprise me to find this very information as it was created by the USPTO. Unless you are keen to have things in bound form, there really is no need to own this book.

Book Review
An easy read.... this book gives a quick introduction to intellectual property rights and application procedures. Not nearly as helpful as some other, thicker, "How to" books.

A convenient concise OVERVIEW
This is quick 85-page overview of the patent process. It provides the key steps, requirements, and definitions in very plain terms (almost in the same style of language as the IRS's 1040EZ instructions). However, it steers clear from giving ADVICE. If you need advice, try Patent It Yourself, from Nolo Press.
Some of the information in this slim volume can be found at http://www.uspto.gov/. But this book brings it together in a very convenient and affordable package. It is worth the modest price!

Government publication that needs a new edition
This is not the first place to start if you're interested in the patent process. The law is dynamic and this book was out of date years ago. There are many other books out there that will outline the basics in a much more reliable way. Look for a book that will discuss World Trade Organization provisions and other international aspects of IP law - otherwise it's too limiting. Never choose to file for a patent application yourself. Use references to educate yourself on the process and then if you want to pursue this expensive process (which can become more expensive if you make an error) find a registered agent or attorney.

A Good Introduction
This book offers a simple, straightforward interoduction to patent law. If you are starting from scratch, this is a good place to start. There isn't much "how to" in this book, so it's probably best for someone who plans to work with a patent lawyer or service.