Support and resistance are one of the basic concepts a trader needs to understand. If any of the above concepts seem complex and confusing, don’t worry. With time, you’ll find that they are actually simple to understand and apply. Most of the complexity is due to a lack of familiarity.
Because technical analysis is not an exact science, it is useful to create support and resistance zones. Each security has its own characteristics, and analysis should reflect the intricacies of the security. Sometimes, exact support and resistance levels are best, and, sometimes, zones work better.