There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Finally, we took the natural logarithm of the divided values by using np.log."

A block of code is set as follows:

df_yahoo = yf.download('AAPL', 
                       start='2000-01-01', 
                       end='2010-12-31',
                       progress=False)

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "A single candlestick (typically corresponding to one day, but a higher frequency is possible) combines the open, high, low, and close prices (OHLC)."