The advantage of Line chart over, OHLC chart and the candlestick, is that it only shows one line – making the decision on trends, support and resistance level etc. less complicate and more definite. Line charts are used to represent different features of the stock market including the high or low prices (but not both!) in a trading day or in a trading week or even in a trading month. It can be used to analyze the opening and closing prices for a time period. Basically the line charts are for those investors who prefer to base their decision on only one aspect of certain stock price (open, high, low, close) – neglecting the other factors to simplify the complex picture of stock behavior. This, of course is the danger in thoise charts, as only one aspect is analyzed – sometimes being not the most in influential one.