Guy Kawasaki has done it again! Written something truly useful in a handy pocketbook guide, albeit too big to fit in the pocket. Reality Check - The Irreverent Guide to Outsmarting, Outmanaging, and Outmarketing Your Competition is a collection of posts from Guy's blog. Thus you really don't have to pay for it, especially if you've already read the Art of the Start. Reality Check is more like an extension of that book with more details about specific topics.
However, it's so useful because is organized as a handy reference. It doesn't read like a traditional book in the sense that you go from page 1 to the end. Instead, it's so useful because it is organized more like an encyclopedia. Look at the table of contents, figure out what you need, and read it in the book. It's much easier to find exactly what you were looking for in Reality Check than on Guy's blog. I need to figure out how to make a good presentation. OH! There's the chapter on the 10/20/30 Rule of Powerpoint.
It also lives up to it's name of Reality Check. You always hear so many success stories coming out of the valley, but it is deathly quiet on all the failed startups. Guy pops the bubble and reminds you that the history books are all glorified fables. Reality is much grimmer. You aren't the only startup with issues, nor the only person who has career problems, or that you have some innate presentation issue that you cannot possibly overcome.
So when it comes down to, should you buy it? It's a useful reference book that I go back to quite often. However, if you're a Google expert and like everything online, there is no real need to buy it. Unless of course you like to shower Guy with more money, which for all his advice, I'm more than happy to do.