Badass: Making Users Awesome by Kathy Sierra
The overall message is good - focus on making your users actually awesome rather than you looking awesome with some concrete strategies to find out what that is and how to get there. A central theme is removing barriers to effective usage. The product here is a book. It was hell to read on my phone. Now if the graphics were large and central to the message and couldn't be done other than in some weird non-standard way I might forgive this. But all I needed to on every page was zoom in to get rid of the needless massive borders. That's all it took. Hundreds of times. So I'd recommend this if you still like paper books or are some sort of tablet toting throwback but on phone? No.