The artist using the direct method may use sketches but eschews the use of a physical model.

I use sketches all the time; in fact I was sketching this morning.

For the manufacturing of the replicas, the brothers had used self-made sketches and detailed plans.

I discussed the raid with the subordinate leaders, using sketches and pointing out the terrain from the trench.

Using pictures and sketches, he conveyed what he thought would work for supporting the kitchen equipment.

Like in several other of his works, Whistler used sketches to prepare the general layout of the work.

Using appropriate sketches and colours, the face of the doll is created.

Used many observations and sketches by Webb and other amateurs.

Warren used gestures and sketches in the sand to ask Gijan about the assortment of equipment.

I sometimes use sketches I did years ago, they still can inspire and start a train of thought.