One of the basic attributes of professionals is that they are always seeking to learn more about their profession. Pilots who fly for scheduled airlines are required to return for training and a check ride every six months. For the rest of us, it can be quite a struggle to carve the time out of our busy schedules to review previously learned subjects or study new ones. Fortunately there are many ways to enhance our knowledge and skills, and extensive resources are available to help us in this task. The AOPA website has a wealth of information, much of it available to nonmembers. Other sources of information include other pilots, clubs, manufacturers, publications such as this one, the FAA, NASA and the NTSB. Finally, there are the seminars put on by AOPA, the FAA and other organizations at various locations around the country each year. No matter how busy you are, if you want to be a professional pilot, you need to schedule at least a few hours each month to enhance your knowledge of some aspect of flying.