One of the most successful TeX interfaces in recent years has been Dick Koch’s award–winning TeXShop on Mac OS X. I believe a large part of its success has been due to its relative simplicity, which has invited new users to begin working with the system without baffling them with options or cluttering their screen with controls and buttons they don’t understand. Experienced users may prefer environments such as iTeXMac, AUCTeX (or on other platforms, WinEDT, Kile, TeXmaker, or many others), with more advanced editing features and project management, but the simplicity of the TeXShop model has much to recommend it for the new or occasional user.