eBay Classifieds provides a large number of listings for classes and lessons and makes searching for these jobs in Denver easier. This may involve advertisements for various services, such as English classes, Spanish classes or history classes. Lessons may include piano, guitar, clarinet or saxophone lessons, as well as others such as karate or fencing lessons. These may typically involve a fee, which may be paid for at the beginning or end of each lesson or class. Perhaps you are looking to improve your Italian speaking skills when you are on business in Italy. Maybe you have an avid interest in karate and you are hoping to take lessons.