1. Click on the brainscape.com PIN link in your purchase confirmation email to claim access to your flashcards.

2. Existing NINJA customers: Log in to your Brainscape.com account and start studying!

3. New NINJA customers: Create an account with Brainscape and then download the iOS or Android app to your device.

iOS users: Download the Brainscape - Smart Flashcards app here: https://itunes.apple.com/us/app/brainscape-smart-flashcards/id442415567?mt=8.

Android users: Download the Brainscape Flashcards app here: https://play.google.com/store/apps/details?id=com.brainscape.mobile.portal&hl=en.