How to better understand a particular career field. There are several ways of doing so:
1. Attend trade shows and conferences
2. Visit a workplace within the industry.
3. Attend short courses and seminars
4. Take on an internship
5. Take on a freelance project related to the chosen field.
This is certainly not an exhaustive list. Nevertheless, by applying the above mentioned points, one can have a better understanding with regards to the nature of the career in mind.