The term mind reading can be used to refer to two fairly disparate things: the effect of mentalism, and an actual communication between two minds. The first is a well-documented performance art with an established history and system by which it is accomplished. The second is a parascience, and is therefore treated with a great deal of skepticism by the mainstream scientific community. Nonetheless, mind reading telepathy remains a very popular belief among many people throughout the world.
Mind reading by using mentalist tricks is meant to convey the impression of actual telepathy, but it is actually accomplished by taking advantage of well-understood principles, including cold, warm, and hot readings, and some basic stage principles. Mentalists have been performing mind reading tricks since ancient history, with recorded shows as far back as the 16th century. Early mentalists truly purported to possess telepathic skills, and indeed some may have actually believed they had these powers, but many modern mentalists if pressed will acknowledge that what they are doing is a mentalist performance, and not an actual para psychological phenomenon.