The Reviewer is invited by email to review a submission, which includes its title and abstract, as well as the journal's URL and a username and password for the Reviewer to use to enter the journal. The journal has the option of using a reviewer option that sends the submission as an email attachment to the Reviewer along with an invitation to review. In this case, the Reviewer then responds by email. What is described here is the principal method for reviewing (and ensuring complete records of the process), which involves the Reviewer conducting the Review on the journal's web site.