What is a patio table without patio umbrellas? One that isn’t very useable, that is for sure. By adding an umbrella, especially one of the models that tilt, you can shield your book, laptop or e-reader from the sun and be able to set up that portable desk that advertiser’s rave about. Umbrellas can shelter one table, or they can be large enough to shelter a grouping of tables and chairs. They can be the traditional patio table design, or they can be rectangular or square. Look for durable materials that are UV resistant for long wear and best results.