Treatise on landscape painting in water-colours by David Cox

"A Treatise on Landscape Painting in Water-Colours by David Cox" by David Cox is a manual from the early 1800s that teaches people how to paint landscapes using watercolors, showing the beliefs about art during that period. The book is like a complete class for artists who want to learn how to paint landscapes. It focuses on how to paint with watercolors and explains that seeing and knowing nature well is important for making art. David Cox uses what he knows to lead students through painting, from setting up the picture to using colors the right way. He expresses that it's essential to have an idea of what the final painting will look like and to carefully watch nature. The book includes helpful tips on drawing the first lines, using light and dark areas, and mixing colors, with examples to make learning easier. Cox believes that making real art requires being connected to nature, and he suggests that students should study hard but also use their own ideas.