Watercolour is also known as aquarelle ( in French), is a wet painting medium/ method and translucent when applied to the paper surface. It is the fastest medium for painting or illustrating from the other mediums. you can edit another layer of paint once it is completely dried.
Thick and cold-pressed paper with a good quality of handmade sheet/paper (made of cotton with a thickness of around 200-300 gsm) is mainly used for the best watercolour painting result and which gives a remarkable texture and appearance.