I agree with the previous reviewer that this book is essentially a series of blogs and very much reads like one. There's a sense that the author is trying too hard to be eye-wideningly novel and side-splittingly witty on each and every page - and the result probably works better on the screen than it does on the page, where his style - especially the "same joke" graphs which seem to appear on almost every page - does become a little wearing.
That said, there were some really good observations in Philips' work. I was particularly taken by the "Picking a puppy" section where you are encouraged to choose the one important thing you want to communicate to people and stick to that, rather than going into lists of 3 or 5 (which is the traditional approach to "Death by PowerPoint" presentations) It doesn't say you can only talk about one thing, but that you should make very VERY sure the other things you want to say directly relate to that one thing. The human brain can't cope with all the lists we deal with today, and I wholeheartedly agree with that sentiment, having nursed my own poor sore list-addled brain for many a year!