The best way to begin exploring LUNA is to first create a user account from the Register link in the upper right corner of LUNA:
Registering for an account in LUNA allows you to save your work and preferences and search external media.
Upon registration you can select default viewing settings. These settings (thumbnail size and number of thumbnails per page) will stay intact each time you login until you change them.
Registering for an account in LUNA allows you to create Media Groups and Presentations as well as customize your settings.
Your user settings will also determine your default collections. You can view other collections than these as you browse LUNA by selecting them from the Collections page, but each time you login you will by default be viewing the collections selected here.
Create a user account in LUNA:
Click on the Register link in the upper right corner near the LUNA search box.
Select a Username and Password to use in order to log-in to your account.
Enter your First Name, Last Name and E-mail address.
Select how many thumbnails per page you want displayed: 50, 100, or 250.
Select the size of the thumbnails displayed: small, medium, or large.
Select your default collections.
Click Save.
By registering a user account you've also automatically created a Default Media Group, titled "Default Group". You can then browse LUNA and add media to this Default Media Group, and edit the properties of this group at any time.