This week's book giveaway is in the Agile and Other Processes forum. We're giving away four copies of Darcy DeClute's Scrum Master Certification Guide: The Definitive Resource for Passing the CSM and PSM Exams and have Darcy DeClute on-line! See this thread for details.
Jacob please SearchFirst. This question has been asked many times in the forum. Search for "alpha beta" in the forum, you'll get a lot of good explanations...