Try cruisedeckplans.com they often have pics of the cabins in various layouts. I always have the site loaded and at the bottom of my screen for referrence while booking. It gives cabin descriptions, sizes, deck plans and categories. When looking at a deck plan if you put your cursor over the cabins it'll tell you what category they're in. A lot better than studying the brochures with a magnifying glass and trying to distinguish what color corresponds to the cabin.