What are the three 3 types of amplifier?

Excuse me, but could you please elaborate on the three different types of amplifiers? I understand that amplifiers play a crucial role in amplifying signals in various electronic devices, but I'm not familiar with the specific categorizations. Are these types based on their functionality, design, or some other criteria? I'd appreciate it if you could provide a brief explanation of each type and how they differ from each other. Thank you in advance for your help.