How the Pomodoro technique works
The technique was developed by Francesco Cirillo in the late 1980s. You pick one task, work without distractions for one session (classically 25 minutes), then rest for 5 minutes. After four focus sessions you take a longer break, usually 15 to 30 minutes. The dots above the timer show how many sessions are done in the current cycle.
Twenty-five minutes is not a hard rule. Tasks that need deep concentration, such as writing or programming, often suit 50-minute sessions with 10-minute breaks better. Try a few presets and keep the one that fits your rhythm.