Thomas Nelson Community College offers all kinds of practical classes for those who want to gain a new skill. The Christopher Wren Association at William & Mary offers a unique program of classes on American history, local history, and the classics of art and literature. The only prerequisite is that participants be retired, so they can soak in lectures without pressure. The Williamsburg Institute holds conferences and seminars on American history. Elderhostel at William & Mary emphasizes colonial history. Virginia Institute of Marine Science offers tours and special programs. The Williamsburg Area Learning Tree brings people together to share unusual classes and hands-on activities.