Freek Lijten has a new post to his blog - a review of a book (from Freeman & Price) called "Growing Object-Oriented Software Guided by Tests". It's based on Java, but the ideas presented can be applied pretty universally.

It may seem strange but I'd like to start out with giving my opinion on this book: It is brilliant! If you don't like reading my post you at least know what you should do next: buy the friggin' book. The book offers some theory concerning agile development, (unit-)testing and code quality but its killer feature is the almost 200 page long example of developing an application the TDD way! In the rest of this post I will shortly highlight different parts of the books and stuff I enjoyed or learned from it.

He breaks up the review in to a few different parts - the process of test-driven development, his "first real lesson", their working example and a section about the more advanced topic of sustainable test driven development.