This video tutorial will guide you on how to use the mail, contacts and calendars preference under settings. It will tutor you on how to create an email account, how many recent emails to show, how many lines to display it and what font size you want. It will teach you on how to turn the Show To/Cc (Carbon Copy) Label, Ask Before Deleting and Always Bcc (Blind Copy) on or off. It will also explain what is the use of Import SIM Contacts.
Source:
http://www.youtube.com/watch?v=BF4eie-gZG4&feature=related