I am looking for a Bible study curriculum for a Men's S.S. class. I want to do an actual Bible Study that is in depth where the participants have to put some time into it each week. Topical or through-a-book - either is fine. The topics don't have to be men's-related, either. Doctrinal stuff would be good, too. Or a study of a particular book of the Bible. Do you have any preferred publisher or author for in-depth Bible Studies that facilitate good discussion and learning? Thanks.