Negative feedback in multistage BJT amps

On Chapter 10: Multi stage amplifier configurations [Analog Devices Wiki] written by there are "Figure 10.2.2. Adding negative feedback" and Figure 10.2.3, but no mention in the text about them.  Was this content lost?  Can it be added?  I assume this improves distortion?  How do you choose the amount of feedback, feedback resistors, etc?