You can create your free Edelweiss account here
Click on Create a Free Account and enter your name, email address, and password:
If you are an employee of an organization with an existing Edelweiss account (library, bookstore, publishing house, or media org), you may check that box and search for your organization, and request to join on the next page. Once you send a request to join the User Administrator at that organization needs to approve you from their account.
Any questions please email firstname.lastname@example.org