I use QGIS 2.8 for creating plans in my new job and would like to study how GISs work, pulling data through from databases etc.
closed as too broad by Brad Nesom, Vince, Mapperz♦ Jul 15 '15 at 13:54
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
You may find the new GeoAcademy (through Canvas) a good option to learn about QGIS. Be sure you link to it from that site. I tried a link through another, and it gave me an older, no content, version of the course.
There are in this day and age Many avenues you can use to learn more about GIS. You can keep it general or dig in and learn all the ins and outs. MOOC (Massive Open Online Courses) is one method which is quite popular now. I am in one now presented by Penn State University. Esri has had several also. Just use your google. I think this question should be closed because of the sheer volume of correct answers.