1. Do not complicate/dogmatise with books & manuals. It is not that sophisticated a skill.
2. Inside your office compound, the flooring might be smooth. There is a danger of skidding even at very low speed, especially if its tiles/or concrete with smooth finish.
3. Borrow your colleague/friend's bike, go to a ground, learn to 1-2-3-4 & 4-3-2-1 (talking about gear shifts

). Also, get a sense of proportion with regards to front & rear brake.
4. Ride in the neighbourhood after getting a DL and after sometime enter the battlefield
5. All the best