Hey, Really, Thank you Lasse I have always tried to switch to TDD but I didn't know what to do. Yes, unit testing, integration testing and the list goes on but how to employ them together? "Test Driven" came really from the heaven. I didn't finish the book yet but once I did, I will reread it again. You really have an exceptional ability to talk for a long time without losing your reader attention. My friends always asked to tell them about TDD, I know the principals but how to explain to them? Your book is the guide Again, thank you Lasse I'm really waiting for another agile book.