Feedback. We're always telling you that you need feedback, with a short feedback gap the time it takes to get feedback on your decisions, your code, your designs. Well, what if you narrowed the feedback gap to near zero while coding? You'd have continuous testing, a powerful idea that lets you fix bugs while they're still small and fresh. Continuous shows you how to use a combination of tests, tools, and techniques to immediately detect problems in code, before they spread.