Where in a digital era where everything has been digitalized. I'm very certain that book keeping work can also be done online, in fact, it will saver, easier and more beneficial to do it online. Doing offline book keeping may be subject to different kind of risks such as fire outbreak, theft etc. If you know to accomplish your aim in this, you first need to consult those who are already in this line. Ask them questions and let them coach you where and how to start.