## Full example

    <%# index.erb %>
    <h1>Listing Books</h1>
    <table>
      <tr>
        <th>Title</th>
        <th>Summary</th>
        <th></th>
        <th></th>
        <th></th>
      </tr>

    <% @books.each do |book| %>
      <tr>
        <td><%= book.title %></td>
        <td><%= book.content %></td>
        <td><%= link_to "Show", book %></td>
        <td><%= link_to "Edit", edit_book_path(book) %></td>
        <td><%= link_to "Remove", book, method: :delete, data: { confirm: "Are you sure?" } %></td>
      </tr>
    <% end %>
    </table>