You were missing a second closing )

Also just for shizzles and giggles try changing:
<% @products.each do |product| %>

to:
<% for product in @products %>

Although yours should work.

it will be easier and you'll find much more tutorials out there

<table>
<% @products.each do |product| %>
  <tr class="<%= cycle('list_line_odd', 'list_line_even') %>">
    <td>
      <%= image_tag(product.image_url, class: 'list_image') %>
    </td>

    <td class="list_description">
      <dl>
        <dt><%= product.title %></dt>
        <dd><%= truncate(strip_tags(product.description), length: 80 %></dd>
      </dl>
    </td>

    <td class="list_actions">
      <%= link_to 'Show', product %><br />
      <%= link_to 'Edit', edit_product_path(product) %><br />
      <%= link_to 'Destroy', product, confirm: 'Are you sure?', method: :delete %>
    </td>

  </tr>
<% end %>
</table>

<br />

<%= link_to 'New Product', new_product_path %>

I have the 3.1 edition of AWDWR, I've been following along correctly and I'm only a very short way into the book actually page 75/76 where they're demonstrating how to edit the index.html.erb view for products... Basically, it's a simple case of me reading and understanding what they're showing me (which of course I do) and then writing the code into my text editor myself.

I do that, double check it and go into my console and type rails s

I go into chrome and load up localhost:3000/products but what I get is this;

C:/Users/Win7/Desktop/Agile/depot/app/views/products/index.html.erb:25: syntax error, unexpected keyword_end, expecting ')'
'); end
       ^
C:/Users/Win7/Desktop/Agile/depot/app/views/products/index.html.erb:32: syntax error, unexpected keyword_ensure, expecting ')'
C:/Users/Win7/Desktop/Agile/depot/app/views/products/index.html.erb:34: syntax error, unexpected keyword_end, expecting ')'

It's trying to tell me that the <% end %> shouldn't be there, which makes absolutely no sense. Have any of you experienced this problem following the book?