How do I refer people to Coinbase?

Could you please elaborate on the process of referring people to Coinbase? I'm interested in understanding the steps involved in this referral system. Do I need to provide them with a unique link or code? How do they sign up using my referral? Is there a specific limit to the number of referrals I can make? Additionally, what kind of rewards or incentives do I get for referring people to Coinbase? It would be helpful if you could provide more details on the referral program and how it works. Thank you for your assistance.