Do my workers need an email address to access the training?

No, does not need an email address to log in.

You will receive login credentials that are valid for your whole site. Also, your used devices will be pre-configured with your content, so there is no need to log in as a worker.

A worker starts with selecting his or her language and the training they want to do.

The workers identify themselves once they finished a course/training and issue the certificate for that training.