How to use maps API?

Hello there, I'm curious about how to use maps API in my projects. Could you please guide me through the process, starting from the basics? I'm looking to integrate maps functionality into my application but I'm not sure where to start. What kind of prerequisites do I need to have? Are there any specific libraries or frameworks that I should be using? Also, are there any common challenges or issues that I should be aware of when working with maps API? Your insights would be greatly appreciated!