There are sixteen prophets in the Old Testament who have books of the Bible named after them. This Bible study is not about any of them. This Bible study is about the dozens of other prophets who prophesied but who did not end up with books of the Bible named after them.
This installment of this video Bible study focuses on Samuel and Saul, whose lives were very intertwined and who also had other jobs in addition to prophesying. Note: Samuel may be included among the writing prophets since two books of the Bible were named after him, but I and II Samuel are always categorized as historical books not prophetic books.