Discover cards are currently not available on CNBC Select and links have been redirected to our credit card marketplace where you can review offers from other issuers like American Express or Chase.

Discover cards are currently not available on CNBC Select and links have been redirected to our credit card marketplace where you can review offers from other issuers like American Express or Chase.

Obtaining a credit card can help you improve your credit score when you use the card responsibly — which includes making on-time payments and keeping your balance low. But let’s start by explaining ...