Eric Anquetil<\/a>, Adrien Delaye, Pei-yu Li<\/p>\nBefore being able to use pen-based interfaces or finger-based interfaces, user has first to get familiar with the vocabulary of gestures, but gestures are not self-revealing by nature and can be difficult to memorize. A way to assist the user in memorizing the gestures is to use the idea of marking menus : by repetitively exploring a hierarchical pie menu (in the “novice mode”), user will get familiar with the gestures that can directly trigger the desired commands (in the “expert mode”). Continuous Marking Menus were specifically designed so as to optimize the quality of the resulting “expert mode” gestures. The continuous visual feedback and the fluency in menu exploration invite the user to execute cursive and constraint-free gestures, thus resulting in more natural and realistic expert mode gestures.<\/p>\n