There are several types of FAA certifications for pilots, each designed for different levels of flying:
Private Pilot Certificate (PPL): This is the basic certification for non-commercial pilots. It allows you to fly for personal use, not for compensation.
Commercial Pilot Certificate: Required for pilots who want to be paid for their services. It involves more training and flying hours than the private certificate.
Airline Transport Pilot (ATP): The highest level of certification, required to serve as a captain for airlines.
Flight Instructor Certificate: Allows you to teach other aspiring pilots.
Other certifications include medical certificates, and ratings like instrument, multi-engine, and type ratings.