How do I buy Nano?

Hello there, I'm new to the world of cryptocurrency and I'm particularly interested in Nano. Could you please guide me on the steps to buy Nano? I've heard it's a fast and fee-less digital currency, and I'm eager to learn more about the process of acquiring it. Is there a specific exchange I should use? Are there any security measures I should take into account? I'd appreciate any insights you can provide to help me get started with buying Nano.