diff --git a/modules/qualifying/learning_processes.md b/modules/qualifying/learning_processes.md
index 4572e86..efcfb3f 100644
--- a/modules/qualifying/learning_processes.md
+++ b/modules/qualifying/learning_processes.md
@@ -307,12 +307,77 @@ I'm asking you to look for an answer online but the solution can be found the re
 
 ## Zombie processes
 
+Yes, there are such things as zombie processes.
+Learning how to create them is a bit out of our scope but I highly advise you to read up a bit on [what](https://en.wikipedia.org/wiki/Zombie_process) they are and [how](https://www.howtogeek.com/701971/how-to-kill-zombie-processes-on-linux/) to deal with them.
+
 ## Process priorities
 
+Life is all about setting priorities and while Linux is very good at managing it's CPU time all by itself, sometimes we know better.
+We've seen the priorities before in `htop` in the `NI` column but we can view them as well via `ps o nice`.
+A more detailed command would be `ps o nice,pid,ppid,args` which for my laptop returns the following:
+
+```
+➜  ~ git:(master) ✗ ps o nice,pid,args
+ NI   PID COMMAND
+  0  2220 zsh
+  0  2283 -zsh
+  0  2323 /bin/sh /usr/bin/startx
+  0  2345 xinit /etc/X11/xinit/xinitrc -- /etc/X11/xinit/xserverrc :0 vt1 -keeptty -auth /tmp/serverauth.8jVsAiU2KQ
+  0  2346 /usr/lib/xorg/Xorg -nolisten tcp :0 vt1 -keeptty -auth /tmp/serverauth.8jVsAiU2KQ
+  0  2354 x-window-manager -a --restart /run/user/1000/i3/restart-state.2354
+  0  5848 zsh
+  0  8365 zsh
+  0  9036 zsh
+  0  9065 newsboat
+  0 10478 ssh waldek@86thumbs.net
+  0 13113 vim learning_processes.md
+  0 13860 ps o nice,pid,args
+  0 28084 zsh
+➜  ~ git:(master) ✗
+```
+
+All my processes are neutral on a scale from *nice* to *not-very-nice*.
+You can tell because they are at `0`.
+The **nice** scale goes from `-20` being not-at-all-nice to `20` being super friendly towards other processes.
+The nicer a process the less aggressive it will be when demanding CPU time.
+
 ### Nice
 
+Depending on your system a new process will get a specific nice value.
+On my Debian laptop by default processes get `5` as nice value.
+We can inspect this as follows where the `ping` command is the new process:
+
+```
+➜  ~ git:(master) ✗ ping 8.8.8.8 > /dev/null &
+[1] 15428
+➜  ~ git:(master) ✗ ps o nice,pid,args -p 15428 
+ NI   PID COMMAND
+  5 15428 ping 8.8.8.8
+➜  ~ git:(master) ✗
+```
+
+Let's be nice to start with and set the process to be not aggressive at all.
+You can launch a command with a specific nice value by prepending `nice -n 15` before the command.
+The value you set will be **added** to the default value as seen below (but tops out at 19 and -19).
+
+```
+➜  ~ git:(master) ✗ nice -n 15 ping 8.8.8.8 > /dev/null &
+[1] 15632
+➜  ~ git:(master) ✗ ps o nice,pid,args -p 15632
+ NI   PID COMMAND
+ 19 15632 ping 8.8.8.8
+➜  ~ git:(master) ✗ 
+```
+
+Now what about *aggressive* processes?
+I would like you to try and set a very *not-nice* value for a `ping` or `sleep` process?
+You can probably guess but it won't work.
+Why do you think this is?
+
 ### Renice
 
+
+
 ## Exercises
 
 Download the following files: