Answer: To update their knowledge on the recent advancements it concerns their field
To encourage collaboration between professionals
To legalize their profession and practice.
Explanation: professional Conferences, literatures and becoming members of a professional body helps to Foster knowledge, building relationships and helps to legalize professions. Conferences are avenues for knowledge transfer from well trained facilitators or professionals,during conferences new advances are exposed to participants.
Professional literatures are good avenues for professionals to update themselves and know the legal provisions guiding them.
Membership of professional body is another way through which professionals can collaborate and be guided by the law of the land.