Unread title — the "new" label indicates the item has never been opened and is less than 24 hours old. Once you open a "new" document or more than 24 hours has passed since the item arrived on your Kindle, the "new" label is automatically removed.
Sample title — the "sample" label indicates the book is a sample. If you like it, you can purchase the full book from within the sample.
Progress indicator — the length of the bar indicates how long the book is and the number of bold dots indicate how far you have read in a particular item.
Pages — indicates the total number of pages of content in your Home screen. Use the Next Page or Prev Page buttons to navigate the pages.
Menu — displays the Home menu, which provides a list of the options and destinations available from this page.
Deleting Content From Home
To remove an item from Home, scroll the cursor to the item you want to delete and press the
Backspace key 
in the middle row of your Kindle keyboard. Then select "OK" or "Cancel" in the dialog box that appears. The same works for groups of items.