Go to https://app.kortext.com/login  and click 'Sign up': 

When presented with a page containing three different sign in options, please select 'Sign in with access code': 

You will be taken to a page where you can submit your access code: 

If the access code is valid, you will be shown an acceptance message with an icon of the book.  

You will then be taken to a page where you can create your credentials: 

After clicking ‘Create account’, you are taken to your Library page, with the option to go through a new user tutorial:  

Log in to the Kortext Bookshelf. 

From the top right-hand corner select the user icon and from the dropdown menu select ‘Redeem access Code’: 

Enter the supplied Access Code. 

The new title will then be available to access from your bookshelf.