There are a few ways to change brush size in Photoshop. One way is to use the Brush tool. Another way is to use the Size tool. The Size tool is located in the Tools palette. To use the Size tool, you need to click on it and then drag the brush size slider to the left or right. The slider can be located in the lower-left corner of the screen. The size of a brush can be changed by dragging it from one side of the slider to another side.
