My learners often ask which brushes are best to buy, this depends on what type of painting you are doing. There are four types of brushes that I couldn’t do without and I think everyone needs. Below are the most useful types of brushes in my opinion:
The Flat Brush
This brush is ideal for backgrounds because it covers a large area without leaving those brush marks that you get with smaller brushes. It also can save lots of time, because of the coverage you can get with them. They are also great for painterly backgrounds and effects. If you work large you will need a wider flat brush if you are work fairly small a medium sized one will be fine.