Digital Bookmark

  Fed up with losing your place in a book? The Digital Bookmark tracks the movement of a page. Simply enter in the page number where the book starts (usually 1, but sometimes not) and for each page turn, the digital bookmark increments.
  It attaches to the book either via a velcro band or clipped to the top of the book and never loses its place.
  Drop the book and keep your place! Get interrupted but come back to where you were!