These Study Master notes are great for your study needs. To use them, simply pick up a note and start reading through the useful content. When you're done studying, you can put them back in an organized way. As for maintenance, try to keep them in a dry place to avoid further damage. Since the books already have some wear, be gentle when handling them to prevent new tears or more creases. Also, if you want to take your own notes, use a pen or highlighter carefully to not smudge the existing writing.