Knowing sales is an important part of being an effective salesperson. By finding ways to connect with your clients, you can increase your chances of making a sale. Since salespeople tend to work to meet quotas, knowing effective strategies can help you more quickly meet your goals. It's also common for salespeople to work on a commission basis, meaning that the more sales you make, the more money you can make. Using sales best practices can help you increase your income and advance your career.