Da Vinci used line drawing to discover how the world around him worked.

Studies of two Sedges c.1510-15 Pen and Ink. Describing size, shape, habit, colour of each plant

The detailed drawn study of the plants reminds me of the water colour folios I saw in the British Museum of the botanical artist Maria Sibylia Merian.

A bulrush, c.1506-12, Red Chalk

The simplicity of the line is amazing. This is what I would like to aim for in my mono prints.