Basic gestures and functions you need to know to start with Sketches
How to change the size and other properties of your paper
Display your image zoomed out to draw from edges to edges
Free your canvas of all clutter
Use the Pattern Tool to fill a closed area
Lock layer transparency to only draw in existing brushstrokes
How to blend colors with the Watercolor Wet Brush
How to use acrylic blending to create subtle texture
How to change a color shape or create a gradient with a simple selection
Add grit with the Sanding Tool