I picked up this book when i was in the process of getting reference material for integrating twitter into one of my portal apps. However, this book turned out to be full fledged bible for building apps for twitter and integrating it to enterprise apps.

Chapter 1 - For a thing to have meaning, it must have context. This chapter will introduce you to the whole world of twitter, its terminologies and slangs and tips and guidelines to use twitter. Frankly, it changed my perspective (and my design) towards the integration piece I was working on.
I recommend this book to any developer who wants a perspective on designing, developing and integrating apps for twitter.

Ravi Gokulgandhi