Architects sketch. It is the fastest way to get an idea out of the head and onto paper. A sketch is quick, freehand, and unpolished. It is not meant to be precise. It is meant to explore, to test, to communicate a thought before it disappears.

Sketches serve different purposes. A concept sketch captures the big idea in a few lines. A study sketch works out a detail, like how a stair meets a wall. A presentation sketch is more finished, used to show a client or a community what a building might look like. Some architects sketch every day. Others sketch only at the beginning of a project.

Digital tools have not replaced sketching. A tablet with a stylus can do much of what a pencil can, with the advantage of layers and undo. But many architects still prefer paper. The friction of the pencil, the resistance of the paper, the inability to undo — these constraints can help rather than hinder.

Sketching is a way of seeing. It forces you to look closely, to understand what you are drawing. A photograph captures a scene. A sketch interprets it.