The book is just great, it is very useful. Moreover, I would like to ask if anyone can recommend me a site where I can view some sample training videos
It would be of great help in learning QCAD .
Hi anthonynelson and welcome
Look here: http://www.ribbonsoft.com/en/qcad-documentation
Under Third party Documentation there is a company which has previously produced some introductory training videos for QCAD 2.2 but you will find that the methods and principles used will be similar/same as for QCAD 3. There are obviously some differences (added tools, improved methods, stand alone library browser etc. in version 3) between the two versions but you will soon 'get your head around' them soon enough to able to work in version 3.
To be honest in my opinion QCAD is so user friendly and intuitive anyway