How to use a watercolor block effectively for painting?

To use a watercolor block effectively for painting, first wet the paper by gently brushing water over the surface. Then, apply the watercolor paint using a brush, starting with light washes and gradually adding more layers for depth and detail. Allow each layer to dry before adding the next to prevent colors from blending too much. Experiment with different techniques like wet-on-wet and wet-on-dry to create various effects. Finally, remove the painting from the block by carefully cutting along the edges with a knife or using a palette knife to release the paper.