There's a lot of superfluous text in this book. That might be to your liking in which case you'll enjoy reading this: there are countless little 'whimsical' bits to keep you entertained as you wait for the promised apotheosis. I hit somewhere around page 60 before I felt the book had really started to get to its core message - what had come before might well be Mr Schwertly's style on stage (and I guess it *might* be entertaining in that context) but here it just seems to be unnecessarily wordy.
There is value in this book: there is a summary of the various types of presentation styles in use (Godin, Takahashi, Lessis) and a core message about the 3 requirements for a great presentation (Content, Design, Delivery) and I found some interest in reading such sections but, again, it was too little and far too late. For example: Design is important. If you're not good at design then perhaps hire some outside talent. I guess that's good advice (and he does mention a website or two that discusses design) but it's nowhere near enough given that this book stretches to some 240 pages. Content? Find your message in 3 "bullets" - something that I think has been covered before (for example, "Beyond Bullet Points") and better elsewhere.
While this is not an expensive book, I would recommend, in its place, other titles that simply deliver more useful content. Given the focus on Content, Design and Delivery, I would propose:
Content: Weissman's "Presenting to Win." Excellent. It also includes more on design than here. Design: Reynold's "Presentation Zen." Delivery: There are countless of these available and it depends upon perceived areas of need which mechanism might work best. But there is better elsewhere than here with a full chapter (!!) dedicated to 'being a chatterbox' as part of the persona of deliver.