Most services are led by elders, who are spiritually mature members of the faith, or by qualified assistants, who are known as ministerial servants. The Public Meeting and Watchtower Study are often held on Sundays. For the Congregation Book Study , Witnesses meet in small groups of about 10 to 15, usually in the private homes of members, to discuss a single Bible topic in depth. The Theocratic Ministry School and the Service Meeting are usually held on a weekday evening. The 45-minute Theocratic Ministry School is designed to help Jehovah's Witnesses improve their public reading and speaking.
Students receive assignments on a rotating basis.
At each meeting, five students give brief speeches on preselected Bible topics, and an instructor comments on the speech and offers suggestions for improvement. Witnesses and non-Witnesses of all ages can enroll in this school. The Service Meeting focuses on helping Witnesses improve their ability to teach the Bible to others. Topics of discussion have included how to show good manners when approaching others with a Bible message and how to discern what Bible topics may be of interest to people in the community. In addition to these services, Jehovah's Witnesses are also encouraged to read the Bible daily and to study the Bible at home with their families.