If choosing a sewing instructor to provide private lessons be sure to ask for references as well as ask to see some of the projects that the instructor has completed. Do they sew in a style that you like or is it something other than what you would like to complete?
Some sewing books will offer a progressive level of projects from the very simple to the more complex or challenging. If taking a self-directed class or training program it is important to follow the projects in order to understand the various aspects and skills required to complete the more difficult projects.