What is deep work?

Deep work is a concept widely referenced in productivity discussions, and one that resonates with founders who feel their most important work — the strategic thinking, writing, and problem-solving that requires sustained focus — is consistently crowded out by reactive tasks and interruptions. Understanding what deep work is and how to protect time for it is practically relevant for any founder.

Deep work refers to cognitively demanding, uninterrupted work on tasks that require sustained concentration and produce high-value outputs — such as strategic planning, writing, product development, or complex analysis. It is contrasted with shallow work: routine, lower-cognitive tasks that can be done while distracted, such as answering emails or attending routine meetings. The argument, supported by research on cognitive performance, is that the capacity for deep work is becoming rarer while its value is increasing.

Protecting time for deep work requires deliberate scheduling, clear communication with team members about availability, and the discipline to resist the pull of reactive tasks during periods reserved for focused effort. Even modest amounts of daily deep work — consistently protected — compound significantly over time. Our guide to deep work and focus for UK founders covers practical approaches to building a working environment that supports sustained concentration.