Scale: Normal (linear). Most trading authors use linear charts (Stan Weinstein, Alexander Elder, Chris Tate and Daryl Guppy).

Data: Weekly charts. Weekly data is made up of daily data that has been compressed to show each week as a single data point. Investors usually focus on weekly and monthly charts to spot long-term trends and forecast long-term price movements.

Price displayed: Candlestick. Originating in Japan over 300 years ago, candlestick charts have become quite popular in recent years. For a candlestick chart, the open, high, low and close are all required. A daily candlestick is based on the open price, the intraday high and low, and the close. A weekly candlestick is based on Monday's open, the weekly high-low range and Friday's close.