Don't forget to share your own scripts with others! Session recording is on by default every time you fire up Zbrush. All you have to do is stop recording when you are done modeling/painting and it will prompt you to save the script!
Yep, the phone is in the practical guide too. Zbrush's scripts are one of the coolest ways to learn the app. It's like being able to play video tutorials but with the actual zbrush files that are being created/edited in the tutorials. You can edit or examine the content in the scripts yourself at any point.
Another sometimes missed place is the app itself. Some of the scripted sequence tuts are pretty awesome. I think it was Pior who mentioned the phone one - very useful.
Definately... the practical guide is a must if you want to learn zbrush. Its very informative and easy to follow and as mentioned the zscript helpfiles are extremely usefall too... its one of the coolest ways to learn because it'll move everything around on your screen and show you where everything is... not like sped up…