You can make the pictures appear by scribbling over them. Or you can draw carefully. The pointier crayons draw smaller and darker than the blunt crayons. The little circle over the crayon is black if you are over a line, and blue if you are not. Pick colors from the color crayon box.
Colors are dark at the bottom and light at the top.
There are six different pictures. For more information, put for 'Topsell' in your favorite search engine.