The Essential 5 is a method that offers an answer to the question‎:‎ ‘how does one interact with someone that has been diagnosed with ASD‎?‎’ Both the cognition and the behaviour in people who have been diagnosed with ASD are influenced by their fragmented perception‎.‎ Due to this fragmented perception‎,‎ there is a lack of coherence causing the client to experience confusion and insecurity‎.‎ This often leads to panic‎,‎ anxiety and undesirable behaviour‎.‎ Common and understandable reactions at undesirable behaviour are anger and punishment‎.‎ But they will prove fruitless‎,‎ especially for persons with ASD‎.‎ It is most important to find out what the cause is that triggers the undesirable behaviour‎.‎ What is confusing the client‎?‎ What key question is the client unable to voice‎?‎ What coherence does the client lack‎?‎ If the person with ASD is able to get more clearness‎,‎ undesirable behaviour will surely stop‎.‎ The essential 5 is a method that originated in the basic five questions‎:‎ WHO‎,‎ WHAT‎,‎ HOW‎,‎ WHERE and WHEN‎.‎ If people with ASD have fine‎-tuned answers to those five questions‎,‎ they will get more structure and clearness in their lives‎.‎ When generalized to other situations the client develops more coherence and understanding of the world‎.‎ And when explained the client develops more language and will grow in describing his/her thoughts and actions in words‎.‎ If necessary the WHY can be explained to offer the client more insight and it supports the development of his/her motivation‎.‎ Due to the different information processing of a ASD client‎,‎ communication should be adapted to his/her way of connection and understanding‎.‎ This special communication is called Auti‎-communication‎.‎ Auti‎-communication can be divided into basic‎-communication skills and different Auti‎-communication techniques‎.‎ According to The Essential Five method the positive attitude and self‎-reflection of the parent or professional are decisive in the success of dealing with a person with ASD‎.‎ An uncondional believe that his/her behaviour is not on purpose but arises from frustration instead of unwillingness is needed‎.‎ This gives the person with ASD the opportunity to be acknowledged completely and to be understood as well as possible‎.‎ Using Auti‎-communication every aspect of life can be made clear and predictable‎.‎ Visualization is an important tool‎.‎ The Essential Five offers an ASD client a firm base by making the entire day predictable‎.‎ The Essential five calls this an foundation‎:‎ from waking up until bedtime‎.‎ The foundation offers an ASD client more clearness and safety‎.‎ Due to the provided safety‎,‎ the ASD client has the chance to develop and learn‎,‎ become more flexible and independent‎.‎ The Essential 5 teaches the environment of the person with ASD how to deal with ASD‎.‎ Always and everywhere‎,‎ the environment offers a safety net for this person‎.‎ With Auti‎-communication they are be able to clarify every question or confusion‎.‎ When the environment can offer this support‎,‎ professional help is no longer needed‎.‎ Because the person with ASD has a firm foundation‎,‎ he or she can survive everyday life‎!‎