Can I buy BTC through Coinbase?

Could you please elaborate on the process of purchasing Bitcoin (BTC) through Coinbase? I'm particularly interested in understanding the steps required to set up an account, verify my identity, and ultimately make a purchase. Additionally, I'd like to know if there are any specific fees or limits associated with buying BTC through Coinbase, and whether there are any security measures I should be aware of to protect my investment. Clarifying these details would help me make an informed decision about using Coinbase for my cryptocurrency transactions. Thank you for your assistance.