B2B (Business to business) lead generation is like fishing for potential customers for a business. It involves finding and attracting other businesses that might be interested in buying your products or services. The most famous B2B lead generation method is email marketing. For example, if you have a book, you can first create an email list of bookshops and then send marketing emails. Another example is if your business supplies vegetables to restaurants, you need to make a list of restaurants and promote it.