There are many, many embroidery stitches. Some are stitched on fabrics according to the weave and spaces between the fibres or through floats in the fabric. Other stitches are made by piercing the fabric to fill or cover a drawn pattern. Some stitches can be used in all types of embroidery.
Here are some stitches you may want to try. Be sure to take a look at the projects and patterns, too!