To redeem an access code, you need a Cambridge Core account. If you do not have a Cambridge Core account, register here. 

You can redeem an access code by following these steps: 

• Log in to your Cambridge Core account
• Click on your name
  
• Then click on My account
  
• Under the My Account area click on My Content
• Enter your access code in the “Redeem access code” field within the My Content page
• Click Activate