Too Long; Didn't Read
Deep Work is the ability to focus without distraction on a cognitively demanding task. It's a skill that allows you to quickly master complicated information and produce better results in less time. Deep work will make you better at what you do and provide the sense of true fulfillment that comes from craftsmanship. But working deeply is not difficult in theory. You just have to... well, work. You'll also improve your level as a developer. And you'll be better at enjoying your leisure time on evenings and weekends.