Fundamental analysis is one of the leading methods used in the selection of firms for investment decisions in stock markets. Fundamental analysis is used to obtain information about a firm by taking into account its financial information such as sales, profitability, cash flows and growth rates. In other words, fundamental analysis tries to show the "big picture" of the financial position of firms in the future. Technical analysis is used to determine the time to invest in the stocks of the firm for which an investment decision is made. Technical analysis is used to determine the time to invest in the stocks of the firm that has taken the investment decision. The combination of fundamental analysis and technical analysis can provide investors with extra gains. In this second book of the technical analysis applications series, the indicators used in technical analysis are introduced. It also includes the results of the application in Borsa Istanbul. This study is derived from the postgraduate thesis titled "Formation Analysis in Stock Investments: An Application in Borsa Istanbul", which was prepared by Gumushane University Graduate Education Institute in 2022.