Email list building is the act of collecting email addresses from interested individuals. You can use website sign-up forms to gather emails. You can offer valuable incentives like free guides or discounts to attract subscribers. You can promote your list on social media platforms. You can also use events or webinars to collect emails from attendees. You must ensure that subscribers give their consent to join your list. You should focus on creating a list of engaged and active users. You must comply with privacy laws to protect the data you collect and maintain trust with your audience.