Hypnotism is regarded as a heightened state of suggestibility where the subject interacts positively to the suggestions of the hypnotist. It is a mental state that can be induced with the willingness of the subject by another individual - the hypnotist. Preliminary instructions or suggestions play a great role in inducing hypnosis and can be administered by the hypnotist or by the subject himself. The latter is referred to as self hypnosis. When hypnosis is used for therapeutic purposes, it is called hypnotherapy. These are common facts about hypnotism that most hypnotists and psychologists agree on.

A common misperception is that a hypnotic state is roughly similar to unconsciousness or sleep. However, this is far from true. On the contrary, the subject is awake and in a state of focused attention though peripheral awareness is vastly diminished.

Hypnosis was originally linked to animal magnetism and mesmerism though later decades saw it being realigned away from them. One of the earliest descriptions of hypnotism emerged in 1843 from James Braid, a Scottish physician and surgeon. Braid in his book Neurypnology described hypnotism as a state of physical relaxation accompanied and induced by mental concentration though he later discarded this description as misleading.

Hypnotists usually precede hypnosis with what is called as "hypnotic induction". This technique is used to position the subject into a hypnotic trance. Though, it is not always necessary, yet it is one of the most effective and popular tools in a hypnotist's tool kit. There are various types of hypnotic induction techniques which are used by hypnotists to heighten client expectation, define their roles and focus attention, to name a few. The most popular technique is the "eye fixation" technique originally used by Braid which lives today too. This technique is also called as "Braidism" after him. There are several variations of "eye fixation" technique used in modern times by different hypnotists.

Some of the methods that Braid used a century back are still current today though some of them are no longer in vogue. A few of them that continue to exist in present times are reclining posture, relaxation of muscles, and optical fixation succeeded by eye closure.

Hypnosis has several medical and therapeutic benefits. It is described as hypnotherapy for that reason and assists in alleviation of pain, weight control, managing skin diseases, reducing anxiety, psychological therapy, habit control and enhancing performance in sports, to name a few.

Interestingly, most of the population is familiar with hypnosis as stage entertainment or entertainment through television and movies though this does not "tell" the entire story. In fact, for this reason, it is viewed several times as mind control which is a far cry from the truth. Fortunately, the credibility of hypnosis and its applications has improved greatly in the last decade. Research is also corroborating its efficacy in the treatment of several ailments and diseases.