Becoming familiar with a codebase could be overwhelming, and its effectiveness is often one of the key differences between a senior and a junior developer. Is there a strategic way to do it? To answer this question, we have to touch on psychological topics like the fear of the unknown, the unknowns mapping and the cognitive load theory. With this broader frame in mind, we will convert some "code search techniques" or "git exploring tricks" into bricks of a more systematic approach.