Event Espresso 4 is a plugin for WordPress and can be installed through your WP dashboard (WP-admin).
Download the latest version of Event Espresso 4 from your Event Espresso account page. It will be saved to your computer as a zip file (event-espresso-core-reg.zip).
Then log in to your WordPress dashboard (WP-admin) and go to Plugins. Next, click on Add New –> Upload and browse to the plugin on your computer. Then select the zip file and begin the upload process. Wait for the plugin to upload and then click on Activate.
Be sure to toggle full screen in the bottom corner of the video and set the quality to HD.