I want to know what is a cash back credit card and how it works?
A cash back credit card gives you a percentage of the money you spend on the card back to you as an incentive for you to use your credit card. Many cash back cards have categories with different percentages they give back to you. Here is an article that gives more information on cash back credit cards, along with a list of good cash back credit cards in case if you are interested in owning one.