I've only got through a few chapters of this book on Kindle so far, but my impression thus far is positive. I had real trouble grasping WPF no matter how many times I tried, but this book has a thorough and patient style that is now bringing me up to speed. A few observations:
- The author frequently describes a feature, then interjects with a paragraph in the form of "It'd be really good if you could make it do this - but, you can't. Sorry." which can kill the enthusiasm for the chapter, only then following up with "And here's a better method to do it.". I find this style odd, but acceptable, and it doesn't impact on the usefulness of the book as long as you're patient.
- In the fashion described above the author injects quite a few helpful tricks that account for the limitations in the framework you'll inevitably encounter. A less comprehensive book would merely leave you hanging and allow you to believe that what you want to do isn't possible.
- I acknowledge that I was warned about this, but the illustrations leave a bit to be desired in the standard Kindle format. As is mentioned, it is optimised for large-format i.e. Kindle DX and PC screen. They are still readable, but the quality has suffered somewhat.