Whether what comes to mind when you think about the word "spine" is part of your body or a book, spines provide structure and support.  And with both books and our bodies, spines show wear and tear over time.  The texture of the spine in this first edition of Gone With the Wind shows how many times these pages have been turned between 1936 and today.  

Photograph structure, support, and/or the wear and tear of time today.  Use texture to give details to your story.